Characterization of different dopants in TiO2 Structure by Pulsed Laser Deposition
A thesis submitted By: Khaled Z.Yahya
Supervised by: Prof.Dr. Adawiya J.Haider Prof.Dr. Raad M.S.Al-Haddad
Synthesis and characterization of nano tio2 via different methodshena78
Titanium Dioxide nanoparticles are the ultra fine particles Particles of titanium dioxide (TiO2) have the diameters less than 100 nm. It is believed to be one of the three most produced nanomaterials , along with silicon dioxide nanoparticles and zinc oxide nanoparticles.
degradation of pollution and photocatalysisPraveen Vaidya
The presentation deals with the use of conduction of photocatalytic reaction using the transition metal doped transparent semiconducting thinfilms. The precursor to film is prepared by the SILAR method, which is a chemical method.
Synthesis and characterization of nano tio2 via different methodshena78
Titanium Dioxide nanoparticles are the ultra fine particles Particles of titanium dioxide (TiO2) have the diameters less than 100 nm. It is believed to be one of the three most produced nanomaterials , along with silicon dioxide nanoparticles and zinc oxide nanoparticles.
degradation of pollution and photocatalysisPraveen Vaidya
The presentation deals with the use of conduction of photocatalytic reaction using the transition metal doped transparent semiconducting thinfilms. The precursor to film is prepared by the SILAR method, which is a chemical method.
This presentation summarizes history and recent development of perovskite solar cells. If you have any questions or comments, you can reach me at agassifeng@gmail.com
This is a power point presentation of project work on preparing Zinc oxide thin films by using SILAR technique and CBD technique and studying its characteristics.
Photocatalysis has now become an emerging scientific discipline due to its interdisciplinary nature. The wide range of research groups is now working on different aspects of photocatalysis worldwide. It is one of the technology the world looking forward to address environmental as well as energy related issues. Hence we can call it as a technology for the future or a dream technology! We need to overcome too many hurdles to implement this technology in real life. Like any other discipline there is a lot of misunderstanding/ misconceptions in photocatalysis.
Most frequently cited article in the field of photocatalysis is by Fujishima and Honda published in 1972 in nature and it has been cited by the photocatalytic community as an origin of photocatalysis. This aspect is not true at all. This article cannot be the origin of photocatalysis. This article only promoted photocatalytic studies. The author itself, actually, started a research career in the “boom” of photocatalytic studies initiated by this article.
This small presentation aims to deliver some misconceptions like above in photocatalysis. The entire presentation is based on different personal commentaries written by Jean Mary Hermann and Bunsho Ohtani. Some recent articles relevant to the topic are collected by the speaker itself and put it in one platform.
Fabrication and Characterization of 2D Titanium Carbide MXene NanosheetsBecker Budwan
Typically, 2D free-standing crystals exhibit different properties from those of 3D counterparts. In this work, 2D nanosheets of Ti3C2 are synthesized by the room temperature exfoliation of Ti3AlC2 in hydrofluoric acid. Al is extracted from Ti3AlC2 and a new 2D material that we call MXene is formed to emphasize its graphene-like morphology. The treated powders can be used in the fabrication of Li-ion batteries and capacitors. A NSEM image of the treated powder shows the influence of HF treatment on the basal planes. Furthermore, XRD results shows the broadening of the peaks and loss of diffraction signal in the out-of-plane direction owing to exfoliation.
50W single-mode linearly polarized high peak power pulsed fiber lasernufchas
We demonstrate 50W single-mode linearly polarized high peak power pulsed fiber laser with tunable ns–µs pulse durations and kHz–MHz repetition rates capable to address a wide range of applications: frequency conversion, LIDAR and others.
This presentation summarizes history and recent development of perovskite solar cells. If you have any questions or comments, you can reach me at agassifeng@gmail.com
This is a power point presentation of project work on preparing Zinc oxide thin films by using SILAR technique and CBD technique and studying its characteristics.
Photocatalysis has now become an emerging scientific discipline due to its interdisciplinary nature. The wide range of research groups is now working on different aspects of photocatalysis worldwide. It is one of the technology the world looking forward to address environmental as well as energy related issues. Hence we can call it as a technology for the future or a dream technology! We need to overcome too many hurdles to implement this technology in real life. Like any other discipline there is a lot of misunderstanding/ misconceptions in photocatalysis.
Most frequently cited article in the field of photocatalysis is by Fujishima and Honda published in 1972 in nature and it has been cited by the photocatalytic community as an origin of photocatalysis. This aspect is not true at all. This article cannot be the origin of photocatalysis. This article only promoted photocatalytic studies. The author itself, actually, started a research career in the “boom” of photocatalytic studies initiated by this article.
This small presentation aims to deliver some misconceptions like above in photocatalysis. The entire presentation is based on different personal commentaries written by Jean Mary Hermann and Bunsho Ohtani. Some recent articles relevant to the topic are collected by the speaker itself and put it in one platform.
Fabrication and Characterization of 2D Titanium Carbide MXene NanosheetsBecker Budwan
Typically, 2D free-standing crystals exhibit different properties from those of 3D counterparts. In this work, 2D nanosheets of Ti3C2 are synthesized by the room temperature exfoliation of Ti3AlC2 in hydrofluoric acid. Al is extracted from Ti3AlC2 and a new 2D material that we call MXene is formed to emphasize its graphene-like morphology. The treated powders can be used in the fabrication of Li-ion batteries and capacitors. A NSEM image of the treated powder shows the influence of HF treatment on the basal planes. Furthermore, XRD results shows the broadening of the peaks and loss of diffraction signal in the out-of-plane direction owing to exfoliation.
50W single-mode linearly polarized high peak power pulsed fiber lasernufchas
We demonstrate 50W single-mode linearly polarized high peak power pulsed fiber laser with tunable ns–µs pulse durations and kHz–MHz repetition rates capable to address a wide range of applications: frequency conversion, LIDAR and others.
in this ppt it was explained that the importance of dssc and the working principles and the notes during the research work..
the concept was explained in the ppt was very clear......
Synthesis Of Nanostructured TiO2 Thin Films By Pulsed Laser Deposition (PLD) ...sarmad
Sarmad Sabih Al-Obaidi
Ali Ahmed Yousif
Abstract
In this work, nanostructured TiO2 thin films were grown by pulsed laser deposition (PLD) technique on glass substrates. TiO2 thin films then were annealed at 400-600 °C in air for a period of 2 hours. Effect of annealing on the structural and morphological were studied. Many growth parameters have been considered to specify the optimum conditions, namely substrate temperature (300 °C), oxygen pressure (10-2 Torr), laser fluence energy density (0.4 J/cm2), using double frequency Q-switching Nd:YAG laser beam (wavelength 532nm), repetition rate (1-6 Hz) and the pulse duration of 10 ns. The results of the X-ray test show that all nanostructures tetragonal are polycrystalline. These results show that grain size increase from 19.5 nm to 29.5 with the increase of annealing temperature. The XRD results also reveal that the deposited thin film, annealed at 400 °C of TiO2 have anatase phase. Thin films annealed at 500 °C and 600 °C have mixed anatase and rutile phases. Full Width at Half Maximum (FWHM) values of the (101) peaks of these films decrease from 0.450° to 0.301° with the increase of annealing temperature. Surface morphology of the thin films have been studied by using atomic force microscopes (AFM). AFM measurements confirmed that the films have good crystalline and homogeneous surface. The Root Mean Square (RMS) value of thin films surface roughness are increased with the increase of annealing temperature.
الخلاصة
على (PLD) النانویة بوساطة تقنیة ترسیب اللیزر النبضي (TiO في ھذا البحث، تم انماء أغشیة اوكسید التیتانیوم ( 2
الرقیقة من 400 الى 600 درجة مئویة في الھواء مدة ساعتین . ودرس تأثیر TiO قواعد زجاجیة. ومن ثم لدنت أغشیة 2
التلدین في الخصائص التركیبیة والطبوغرافیة. عوامل عدیدة لأنماء الأغشیة اخذت بنظر الاعتبار لتحدید الحالة المثلى مثل
0.4 ) باستخدام J/cm 10-2 ) ،كثافة طاقة الفیض اللیزري( 2 Torr) 300 ) ،ضغط الأوكسجین ºC) درجة حرارة القاعدة
532 بمعدل تكراریة - 1 nm التردد المضاعف للیزر النیدیمیوم- یاك الذي یعمل بتقنیة عامل النوعیة عند الطول الموجي
6 ھرتز) وامد نبضة 10 نانوثانیة. تظُھر نتائج فحوصات الأشعة السینیة أن جمیع التراكیب النانویة رباعیة متعددة )
التبلور. وان ھذه النتائج تظھر زیادة في حجم الحبیبات من 19.5 نانومتر الى 29.5 نانومترمع زیادة درجة حرارة التلدین.
نتائج الأشعة السینیة اظھرت ایضا ان الغشاء المرسب والملدن في 400 درجة مئویة لثنائي اوكسید
Effect of Annealing on the Structural and Optical Properties of Nanostr...sarmad
Effect of Annealing on the Structural and Optical Properties of Nanostructured TiO2 Films Prepared By PLD. تأثير التلدين على الخواص التركيبية والبصرية لأغشية أوكسيد التيتانيوم (TiO2) ذات التراكيب النانوية المحضرة بتقنية ترسيب الليزر النبضي (PLD)
Course: Semiconductor Physics for B.Tech
Topic: Basics of Optical Fibre Communication
The slides have been explained using animations, so download the presentation and run on your computer for better visualisation.
Synthesis and charaterization of la1 x srxmno3 perovskite nanoparticlesMai Trần
In recent times perovskite materials are extensively studied and have attracted much attention because they exhibit interesting the properties, showing potential applications in commercial, technical and biomedical. In Vietnam, perovskite materials be of interest research and applications are strong but with major research direction is to go deep into the electrical properties and the magnetic properties. The Lanthanum Strontium manganite is a perovskite-based crystal-structured ceramic material with the formula of La1-xSrxMnO3, where x describes the doping ratio. It has attracted much attention due to its good magnetic, electrical, and catalytic properties and is becoming an attractive possibility material in several biomedical applications, particularly with nano-size. In industry, this material is commonly used in as a cathode material in commercially produced solid oxide fuel cells. In this thesis, we present the Perovskite nanoparticles La1-xSrxMnO3 were successfully synthesized of the nanosize La1-xSrxMnO3 at x = 0; 0.1; 0.2; 0.3 and 0.4 which prepared by a modified sol-gel method. Structure and magnetic properties of them were systematically investigated in dependence on doped Sr ratio x. The structure was investigated by XRD and show slightly changed but magnetic properties varied strongly with changing the doping ratio x. Magnetic properties of samples were studied by Vibrating Sample Mode of Physical Properties Measurement System show at the room temperature, the samples show superparamagnetic properties with high saturated magnetization MS of 57 emu/g which strongly dependents on the doped Sr ratio x.
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Influence of concentration on the structural, optical and electrical properti...iosrjce
IOSR Journal of Applied Physics (IOSR-JAP) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Synthesis and Characterization Studies of Solvothermally Synthesized Undoped ...IJERA Editor
Nanocrystalline TiO2 was investigated by solvothermal synthetic method using toluene as a solvent. Titanium tetra isopropoxide (TTIP) was used as a precursor, which was decomposed at high temperature and precipitated in toluene. Subsequently, the solution was thermally treated at 250C for five hours in stainless steel autoclave. Amorphous Nano TiO2 was formed. When these amorphous Nano TiO2 was calcinated to 550 C anatase Nano TiO2 crystalline with particle size <20 nm was formed. These amorphous and anatase phase Nano TiO2 was characterized by Powder X-ray diffraction (PXRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS) and Photoluminescence (PL) studies and the results were discussed.
Bespoke compositions and microstructures from suspension and solution precurs...Tanvir Hussain
Presentations by Dr Hussain at the TS4+E conference in Montreal. Canada 17-18 Sep 2019, Thermal Spraying of Suspensions and solutions symposium + environmental barrier coatings
Optical Control of Selectivity of High Rate CO2 Photoreduction Via Interband-...Pawan Kumar
Photonic crystals consisting of TiO2 nanotube arrays (PMTiNTs) with periodically modulated diameters were fabricated using a precise charge-controlled pulsed anodization technique. The PMTiNTs were decorated with gold nanoparticles (Au NPs) to form plasmonic photonic crystal photocatalysts (Au-PMTiNTs). A systematic study of CO2 photoreduction performance on as-prepared samples was conducted using different wavelengths and illumination sequences. A remarkable selectivity of the mechanism of CO2 photoreduction could be engineered by merely varying the spectral composition of the illumination sequence. Under AM1.5 G simulated sunlight (pathway#1), the Au-PMTiNTs produced methane (302 µmol h-1) from CO2 with high selectivity (89.3%). When also illuminated by a UV-poor white lamp (pathway#2), the Au-PMTiNTs produced formaldehyde (420 µmol h-1) and carbon monoxide (323 µmol h-1) with almost no methane evolved. We confirmed the photoreduction results by 13C isotope labeling experiments using GC-MS. These results point to optical control of the selectivity of high-rate CO2 photoreduction through selection of one of two different mechanistic pathways. Pathway#1 implicates electron-hole pairs generated through interband transitions in TiO2 and Au as the primary active species responsible for reducing CO2 to methane. Pathway#2 involves excitation of both TiO2 and surface plasmons in Au. Hot electrons produced by plasmon damping and photogenerated holes in TiO2 proceed to reduce CO2 to HCHO and CO through a plasmonic Z-scheme.
Optical and Electrical Properties of TiO2 Doped Fe2O3 Thin Film Prepared by S...IJAEMSJORNAL
In this work, iron oxide (Fe2O3) and titanium oxide (TiO2) doping (Fe2O3) thin films have been prepared by spray pyrolysis technique (SPT) on a glass substrate. We have studied the effects of various doping percentage of (TiO2) on (Fe2O3) optical and electrical properties. The optical parameters of the prepared films as absorbance, absorption coefficient, optical energy gap and refractive index have been calculated for all prepared films. D.C conductivity and Hall effect for all films are measured. The results showed that absorbance of prepared films decreases with increasing percentage of (TiO2) this lead to increase the energy gap and conductivity decreased with increasing of percentage of (TiO2) as well as the results showed throughout the study that all films have tow activation energy, its value increase with increasing of percentage of (TiO2). Hall effect measurement showed all films have n-type conductivity.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Influence of Carbon in Iron on Characteristics of Surface Modification by EDM...drboon
Many surface modification technologies have been proposed and carried out practically by CVD, PVD et.al. Carbonized layer has been made using EDM method. In this paper, to make the nitride layer by EDM some new trials were carried out using a titanium electrode in liquid nitrogen. Experiments were carried out on carbon steel (S45C), pure iron and cast iron. TiN can be obtained on EDMed surface. Moreover, TiCN can be found on cast iron and steel (S45C) by XRD investigation. To confirm the fabrication mechanisms of modified layer on the steel, the following experimental factors were investigated by EDS.
Influence of Carbon in Iron on Characteristics of Surface Modification by EDM...drboon
Many surface modification technologies have been proposed and carried out practically by CVD, PVD et.al. Carbonized layer has been made using EDM method. In this paper, to make the nitride layer by EDM some new trials were carried out using a titanium electrode in liquid nitrogen. Experiments were carried out on carbon steel (S45C), pure iron and cast iron. TiN can be obtained on EDMed surface. Moreover, TiCN can be found on cast iron and steel (S45C) by XRD investigation. To confirm the fabrication mechanisms of modified layer on the steel, the following experimental factors were investigated by EDS.
Photoelectrochemical characterization of titania photoanodes fabricated using...Arkansas State University
Design and fabrication of new electrodes for photo-electrolysis using a material that is photo-active, stable, corrosion resistant, and cost effective.
Similar to Characterization of different dopants in TiO2 Structure by Pulsed Laser Deposition (20)
Study of Annealing Effect on the Some Physical Properties of Nanostructured T...sarmad
Ali A.Yousif ● , Sarmad S. Al-Obaidi ●●
Abstract
Nanostructured Titanium Dioxide (TiO2) thin films were prepared by pulsed
laser deposition (PLD) on the glass substrates. The effects of different annealing
temperature (400, 500 and 600 °C) towards the some physical properties such as
structural, morphological and optical have been studied. From X-ray diffraction
result, the crystallinity of TiO2 thin films improved at higher annealing
temperature. It also could be observed that the rutile phase start to exist at
annealing temperatures of 500 °C and 600 °C. The Full Width at Half
Maximum (FWHM) of the (101) peaks of these films decreases from 0.450° to
0.301° with increasing of annealing temperature. AFM measurements confirmed
that the films grown by this technique have good crystalline and homogeneous
surface. The Root Mean Square (RMS) value of thin films surface roughness
increased with increasing of the annealing temperature. From UV-VIS
spectrophotometer measurements, the optical transmission results shows that the transmission over than ~65% in the near-infrared region which decrease with the increasing of annealing temperatures. The allowed indirect optical band gap of the films was estimated to be in the range from 3.49 to 3.1 eV. The allowed direct band gap was found to decrease from 3.74 eV to 3.55 eV with the increase of annealing temperature. The refractive index of the films was found from 2.27 -2.98 at 550nm. The extinction coefficient, real and imaginary parts of the dielectric constant increase with annealing temperature.
ZnO:Fe ودراسة بعض الخصائص الفيزيائية وظروف الترسيب للمركب APCVD تصميم وتصني...sarmad
Design and Fabrication Nanostructures growth of (ZnO:Fe)
Compound by APCVD Technique and Study Some Physical Properties and Deposition Parameters
A Thesis Submitted to the College of Education Ibn Al-Haitham University of Baghdad in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Physics
By Ziad Tariq Khodair AL-Magmaee
الاطروحة د. زياد طارق
Cd2SnO4 دراسة تأثير التلدين على الخواص التركيبية والبصرية لأغشية sarmad
Cd2SnO4 دراسة تأثير التلدين على الخواص التركيبية والبصرية لأغشية
by: Thikra Abbas Mujbil Al- Hilfi, ذكرى عباس مجبل الحلفي
Supervised By: prof. Sabria Alioui
Effect of annealing on the structural and optical properties of nanostructure...sarmad
A thesis
Submitted to the Council of Education College of Al-mustansiriyah University in Partial Fulfillment of the Requirements for theDegree of M.Sc. in Physics
By
Sarmad Sabih Kaduory Al-Obaidi
B. Sc. 2010
Supervised By
Dr.Ali Ahmed Yousif Al-Shammari
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
3. PLD: Pulsed Laser Deposition
The interaction of the laser beam with
the target resulting in evaporation of the
surface layers.
The interaction of the laser beam with the
evaporation materials causing the formation of
isothermal expanding plasma.
The expansion of the laser induced plasma
with a rapid transfer of thermal energy of the
species in plasma into kinetic energy.
Thin film growth.
5. Why TiO2 ?
Titanium dioxide (TiO2) is a wide band gap ( ) eV for anatase and 3 eV
for rutile .
Titanium dioxide have high refractive index - up to 2.7 (at wavelength of
600nm)
Titanium dioxide good chemical resistance and high chemical stability.
Titanium dioxide good sensitivity to poison gases.
Titanium dioxide good photocatalysts.
7. TiO2 gas sensor
• TiO2 based sensor are predominant solid-state
gas sensors for domestic, commercial and
industrial application.
• •Low cost
• •Easy production
• •Rigid construction
• •Compact size
• •Simple measuring electronics
8. Aim of the work
The aim of this work is to reveal specific properties of TiO2
nanostructure prepared by pulsed laser deposition technique
TiO2 samples have been prepared at different dopant noble
metal such as (Pd ,Pt, Ni, Ag,…) The main objective of this
work are :
• 1. Characteristics of structural , microstructural and
photoluminescence properties of thin films .
• 2. Studying the sensitivity and selectivity of these films doped
with different noble metal deposited by PLD to CO gas.
14. Characterization Measurements of
prepare films
Films thickness measurement
XRD Study
TCO film Morphology SEM ,AFM
Optical properties
photoluminescence properties
Gas sensor measurement
17. •Substrate Temperatures effect (Ts )
c
b
a
2θ (degree)
A :anatase
Figure (1) XRD spectra of TiO2/glass at different temperature
a) 200ºC b) 300ºC, c)400ºC
Intensity
(a.u)
laser fluence 0.8 J/cm2 oxygen
pressure 5 *10-1 Torr
19. FWHM and Main grain size
0
10
20
30
40
50
250 300 350 400 450 500 550
Temperature °C
Maingrainsize(nm)
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.49
0.5
0.51
250 300 350 400 450 500 550
Temperature °C
FWHM°
a b
Figure (3) TiO2 A(101) thin films grown
on Si (111) at different substrate temperature for (a) main grain size (b)FWHM
20. Oxygen pressure effect
Fig (4) XRD patterns of TiO2 films grown on Si
at various oxygen pressures a) 5×10-2 Torr b) 5×10-1 Torr c) 10 Torr
Intens
ity
(a.u)
2θ (degree)
21. Laser Fluence effect
Fig (5) XRD patterns of TiO2 films grown on Si
at various laser fluence a) 1.2 b) 0.8 c) 1.8 J/cm2
23. X - ray Florescence
Fig (7) X-ray florescence pattern for a) TiO2 pure b) TiO2 3% Ag c) TiO2 3% Pt d) TiO2 3% Pd e) TiO2 3% Ni .
a
b
24.
25. SEM
Substrate Temperatures effect (Ts )
Figure (8) SEM image of the TiO2/Si thin films deposited at various temperature of
a) 300°C, b) 400°C, c) 500°C, and laser fluence 1.2 J/cm2 ,O2 pressure=
10-1 mbar
26. Oxygen pressure effect
c
ba
Figure (9) SEM image of the TiO2/Si thin films deposited at various
oxygen pressure a ) 5×10-2 mbar, b) 5×10-1 mbar and c) 10 mbar at
substrate temperature 500 °C
and laser fluence 1.2 J/cm2
27. Doping effect of noble metal (Ag, Pt, Pd and
Ni).
a
c
b
d
Figure (10) SEM image of the TiO2/Si thin films doping 3% with different noble
metal a) Ag b) Pt c) Pd and d) Ni
28. SEM of plane grain size (nm)X-ray of plane grain size (nm)sample
2931TiO2 Pure 300°C
3536.3TiO2 Pure 400°C
4041.28TiO2 Pure 500°C
Table (1). The grain size of the TiO2 films
SEM of plane grain size (nm)X-ray of plane grain size (nm)O2 Pressure (mbar)sample
33345×10-2TiO2/Si
39415×10-1TiO2/Si
343610TiO2/Si
SEM of plane grain size (nm)X-ray of plane grain size
(nm)
Dopants atom Radii
(pm)
sample
1515.7126TiO23Ag
1111.6130TiO23Pt
2021.572TiO2Pd 3
181969TiO2Ni 3
29. Atomic Force Microscopy (AFM)
Substrate
Temperatures effe
(TS)
Figure (11) AFM image of the TiO2/Si thin films deposited at various substrate temperature of
a) 300 C, b) 400 C, c) 500 C, and laser fluence 1.2 J/cm2 ,O2 pressure=10-1 mbar
30. Oxygen Pressure effect
Figure (12) AFM image of the TiO2/Si thin
films deposited at various oxygen pressure
a ) 5×10-2 mbar, b ) 5×10-1 mbar and c) 10
mbar at substrate temperature 500 °C
and laser fluence 1.2 J/cm2
31. doping effect of noble metal (Ag ,Pt
,Pd ,and Ni)
b
c
d
a
Figure (13) AFM image of the TiO2/Si thin
films doping 3% with different noble metal a)
Ag b) Pt c) Pd and d) Ni substrate
temperature 500 °C
and laser fluence 1.2 J/cm2 with O2
pressure=10-1 mbar.
32. Table (2). The RMS and roughness of TiO2 films
from AFM
RMS roughness(nm)AFM of plane grain size (nm)X-ray of plane grain size(nm)sample
2.13031TiO2 Pure 300°C
434.436.3TiO2 Pure 400°C
11.24241.28TiO2 Pure 500°C
RMS
roughness
AFM of plane grain size (nm)X-ray of plane grain size (nm)(O2) Pressure mbarsample
4 (nm)32345×10-2TiO2/Si
6 nm40415×10-1TiO2/Si
16.7nm333610TiO2/Si
RMS roughnessAFM of plane grain size (nm)X-ray of plane grain size (nm)sample
26 nm1615.7TiO2 :3% Ag
28 nm12.411.6TiO2 :3% Pt
23 nm2321.5TiO2 :3% Pd
24 nm20.519TiO2 :3% Ni
37. Table (3) Physical and optical measurements for pure
and doped TiO2 films
Optical energy gab E°g (eV)
(indirect)
Optical energy gab E°g (eV)
(direct)
Samples
3.033.4TiO2 Pure at 200 °C
3.13.5TiO2 Pure at 300 °C
3.23.6TiO2 Pure at 400 °C
3.123.42TiO2:1%Ag at 200 °C
3.203.5TiO2 :2%Ag at 200 °C
3.283.67TiO2 :3%Ag at 200 °C
3.113.41TiO2 :1%Pt at 200 °C
3.193.52TiO2 :2%Pt at 200 °C
3.253.58TiO2 :3%Pt at 200 °C
2.933.42TiO2:1%Pd at 200 °C
2.93.37TiO2 :2%Pd at 200 °C
2.883.32TiO2 :3%Pd at 200 °C
2.943.42TiO2:1%Ni at 200 °C
2.93.38TiO2 :2%Ni at 200 °C
2.83.35TiO2 :3%Ni at 200 °C
40. Photoluminescence (PL)
Substrate Temperature effect (Ts)
c
a b
Figure (23) Photoluminescence spectrum of pure TiO2/glass thin films deposited at various substrate temperature of
a) 300°C, b) 350 °C, c) 400°C, and laser fluence 1.2 J/cm2 ,O2 pressure=10-1 mbar
41. The doping effect of noble metals (Ag ,Pt ,Pd ,and Ni)
a b
c d
Figure (24) Photoluminescence spectrum of the TiO2/glass thin films doping 3% with different noble metal a) Ag b) Pt c) Pd
and d) Ni ,at substrate temperature 400 °C
and laser fluence 1.2 J/cm2 with O2 pressure=10-1 mbar.
42. Table (4) Energy values and Intensity of PL Peaks
Samples Energy of Peak
A (eV)
Intensity (a.u) Energy of Peak B (eV) Intensity (a.u) Optical energy
gap (eV) E°
g
TiO2 at 300°C 3.06 840 2.39 365 3.03
TiO2 at 350°C 3.12 900 2.4 390 3.1
TiO2 at 400°C 3.22 1000 2.43 415 3.2
TiO2 :3% Ag at
400°C
3.24 280 2.45 150 3.28
TiO2 :3% Pt at
400°C
3.25 540 2.5 380 3.25
TiO2 :3% Pd at
400°C
2.93 810 2.33 350 2.88
TiO2 :3% Ni at
400°C
2.85 820 2.3 400 2.8
43. Sensing properties
Room Temperature
0
0.02
0.04
0.06
0.08
0.1
0.12
0 200 400 600 800 1000
Time (sec)
Sensetivity
TiO2 Pure
TiO2:3%Pt
TiO2:3%Ag
TiO2:3%Pd
TiO2:3%Ni
Figure (24) Sensitivity for TiO2/glass pure and doping with a )Ag b)Pt c) Pd
d) Ni as a function of operation time for CO gas at Room temperature and
laser fluence 1.2 J/cm2 with O2 pressure=10-1 mbar
44. Operation time Effect on sensing properties
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 100 200 300 400 500 600 700 800 900
Time (sec)
Sensitivity
TiO2 Pure
TiO2 :1% Ag
TiO2 :2% Ag
TiO2 :3% Ag
0
0.5
1
1.5
2
2.5
3
3.5
0 100 200 300 400 500 600 700 800 900
Time (sec)
Sensitivity
TiO2 Pure
TiO2 :1% Pt
TiO2 :2% Pt
TiO2 :3% Pt
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 100 200 300 400 500 600 700 800 900
Time (sec)
Sensitivity
TiO2 Pure
TiO2 :1% Pd
TiO2 :2% Pd
TiO2 :3% Pd
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0 100 200 300 400 500 600 700 800 900
Time (sec)
Sensitivity
TiO2 Pure
TiO2 :1% Ni
TiO2 :2%Ni
TiO2 :3% Ni
a b
d
c
Figure (25) Sensitivity for TiO2/glass pure and doping with a )Ag b)Pt c) Pd d)
Ni as a function of operation time for CO gas at operation temperature 250 C and
laser fluence 1.2 J/cm2 with O2 pressure=10-1 mbar
45. Operation time Effect on resistance properties
0
2
4
6
8
10
12
0 200 400 600 800 1000
Time (sec)
Resistance(ohm)*10^9
TiO2 Pure
TiO2 :1% Ag
TiO2 :2% Ag
TiO2 :3% Ag
0
2
4
6
8
10
12
0 200 400 600 800 1000
Time (sec)
Resistance(ohm)*10^9
TiO2 Pure
TiO2 :1% Pt
TiO2 :2% Pt
TiO2 :3% Pt
0
2
4
6
8
10
12
0 200 400 600 800 1000
Time (sec)
Resistance(ohm)*10^9
TiO2 Pure
TiO2 :1% Pd
TiO2 :2% Pd
TiO2 :3% Pd
0
2
4
6
8
10
12
0 200 400 600 800 1000
Time (sec)
Resistance(ohm)*10^9
TiO2 Pure
TiO2 :1% Ni
TiO2 :2% Ni
TiO2 :3% Ni
Figure (26) resistance for TiO2/glass pure and doping with a )Ag b)Pt c)
Pd d) Ni as a function of operation time for CO gas at operation
temperature 250 C and laser fluence 1.2 J/cm2 with O2 pressure=10-1
mbar
a b
c
d
46. Operation time Effect on current properties
0
1
2
3
4
5
6
7
8
0 200 400 600 800 1000
Time (Sec)
current(nA)
TiO2 pure
TiO2 1% Ag
TiO2 2% Ag
TiO2 3% Ag
0
1
2
3
4
5
6
7
8
9
10
0 200 400 600 800 1000
Time (Sec)
current(nA)
TiO2 pure
TiO2 1%Pt
TiO2 2%Pt
TiO2 3%Pt
0
1
2
3
4
5
6
7
0 200 400 600 800 1000
Time (Sec)
current(nA)
TiO2 pure
TiO2 1% Pd
TiO2 2% Pd
TiO2 3%Pd
0
1
2
3
4
5
6
0 200 400 600 800 1000
Time (Sec)
current(nA)
TiO2 pure
TiO2 1% Ni
TiO2 2% Ni
TiO2 3% Ni
a
d
c
b
Figure (27) current for TiO2 /glass pure and doping with a )Ag
b)Pt c) Pd d) Ni as a function of operation time for CO gas at
operation temperature 250 C and laser fluence 1.2 J/cm2 with O2
pressure=10-1 mbar
47. Operation temperature Effect on sensing properties
0
0.5
1
1.5
2
2.5
3
0 50 100 150 200 250 300 350 400 450
T(C)
Sensitivity
TiO2 Pure
TiO2 :2% Ag
TiO2 :3% Ag
TiO2 :1% Ag
0
0.5
1
1.5
2
2.5
3
3.5
4
0 50 100 150 200 250 300 350 400 450
T(C)
Sensitivity
TiO2 Pure
TiO2 :2% Pt
TiO2 :3% Pt
TiO2 :1% Pt
0
0.5
1
1.5
2
2.5
0 50 100 150 200 250 300 350 400 450
T(C)
Sensitivity
TiO2 Pure
TiO2 :2% Pd
TiO2 :3% Pd
TiO2 :1% Pd
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 50 100 150 200 250 300 350 400 450
T(C)
Sensitivity
TiO2 Pure
TiO2 :2% Ni
TiO2 :3%Ni
TiO2 :1% Ni
Figure (28) Sensitivity for TiO2/glass pure and doping with 1% ,2%
and 3% (Ag ,Pt ,Pd ,and Ni) films for CO gas at different operation
temperature and laser fluence 1.2 J/cm2 with O2 pressure=10-1 mbar
a b
c d
48. Sensitivity of TiO2 /Si
0
5
10
15
20
25
0 100 200 300 400 500
T (C)
Sensitivity
TiO2 Pure
TiO2:3% NI
TiO2:3% Pd
TiO2:3% Ag
TiO2:3%Pt
Figure (29) Sensitivity for TiO2/Si pure and doping with 3% (Ag ,Pt ,Pd ,and Ni) films for
CO gas at different operation temperature at laser fluence 1.2 J/cm2 with O2 pressure=10-
1 mbar
49. Table (5) Sensitivity values of TiO2 pure and doping with different
noble metal concentration at operation temperature T= 250 °C.
Samples Sensitivity
TiO2 pure/glass 0.5
TiO2 :1% Ag /glass 1.7
TiO2 :2% Ag/glass 2.3
TiO2 :3% Ag/glass 2.7
TiO2 :1% Pt/glass 2.2
TiO2 :2% Pt/glass 3
TiO2 :3% Pt/glass 3.3
TiO2 :1% Pd/glass 1.5
TiO2 :2% Pd/glass 1.9
TiO2 :3% Pd/glass 2.2
TiO2 :1% Ni/glass 0.85
TiO2 :2% Ni/glass 1.2
TiO2 :3% Ni/glass 1.5
TiO2 pure/Si 7.5
TiO2 :3% Ag/ Si 17
TiO2 :3% Pt/ Si 23
TiO2 :3% Pd/ Si 15
TiO2 :3% Ni/ Si 12.5
50. The results in this work agreement with
other results as shown in table below :
References Metal dopantTiO2 Selectivity Sensitivity
[46] - CO 2
[136] - CO 4
[45] - Ethanol and methanol vapor 5
[30] Pt CO 20
[39] Pd CO , H2 4 , 2.5
[81] Nb CO 14
[this work] Pt CO 23
Ag CO 17
Pd CO 14
Ni CO 11
- CO 7.5
51. Conclusion
Pure TiO2 showed poor response to CO gas.
3 % wt Ag ,Pt ,Pd and Ni doped TiO2 thin film was the
most sensitive element to CO gas .
The optimum operating temperature for CO gas
sensing was (250) °C .
Ag ,Pt ,Pd and Ni doped TiO2 thin film would be
suitable for fabricating the CO gas sensors.
The sensor TiO2 doping with Pt showed good
selectivity to CO gas.
TiO2 deposited on silicon has sensitivity to CO gas
higher than TiO2 deposited on glass
52. Future Work
• 1- Studying (TiO2) films as
antireflection coating on (p-n)
junction solar cells and as a
photocatalyst .
• 2- Using a mixing of background gas
N2 + O2 with high vacuum to
enhancement the quality of the films.
• 3- Studying (TiO2) films as a gas
sensor for NO2 and H2 gas .
53. Paper accepted
1- “Structural and optical properties of TiO 2 photocatalyst thin
film produced by PLD”.
Iraqi Journal science 3rd Scientific conference Baghdad University.
2- "Investigation of structural and Morphology properties of
Nanocrystalline thin films prepared by PLD ".
Journal of the collage education in the 6th conference on physics .
Paper submitted
3-" Structure and Morphology properties of nanocrystalline
noble metal doped films for gas sensing properties "
-2nd conference of nano technology and advance material and their
application .
4-" Nanostructure dopants TiO2 films for gas sensing".
Iraqi Journal of applied physics .