This document provides a summary of Bin Sun's education, research experience, skills, and publications. It summarizes that Bin Sun received his PhD in Chemical Engineering from the University of Waterloo, where he developed high performance n-type polymer semiconductors. He has over 25 publications in peer-reviewed journals, with research focusing on flexible electronics, organic materials development, and biosensors.
No doubt, exposure to RF radiation emitted from mobile phones may cause some detrimental effects. However, in some special circumstances, these radiations may cause some stimulatory or beneficial effects. Our team is currently preparing a review article on the stimulatory/beneficial effects of exposure to mobile phone radiation.
Radiation originates from anthropogenic, primordial, and cosmogenic sources.
The impact of radiation through anthropogenic and cosmogenic sources is negligible
to the environment while the primordial radioactivity is widely distributed in the earth
and its environs. This radioactive material and its Byproducts are found mainly in
diverse geological formations around us. Inadequate access to public water supply in
Abuja has forced more than 80 percent of the population of about 5 million to drill
private boreholes. Nigerian drillers are unaware of high concentrations of
radioactivity present in granitic rocks which vary with depth. The radioactivity of
226Ra as well as 232Th decay chains for the lithological rock samples could be at
equilibrium considering the age as well as the isotopic mass proportion which is
assumed to be equal to its natural isotope. Neutron Activation Analysis (NAA) is
adopted for this study with the aim of minimizing sample size as well as less counting
rate in order to estimate the radioactivity concentration in rock samples. Two
boreholes are drilled in Abuja in order to randomly collect the rock samples from
three different layers of each site. All the samples were duplicated for each
radionuclide examination, resulting to twelve samples in all. The results showed that
the activity concentrations of 226Ra, 232Th and 40K in the two sites were in the order
232Th > 226Ra > 40K. 226Ra and 232Th possess activity concentration
No doubt, exposure to RF radiation emitted from mobile phones may cause some detrimental effects. However, in some special circumstances, these radiations may cause some stimulatory or beneficial effects. Our team is currently preparing a review article on the stimulatory/beneficial effects of exposure to mobile phone radiation.
Radiation originates from anthropogenic, primordial, and cosmogenic sources.
The impact of radiation through anthropogenic and cosmogenic sources is negligible
to the environment while the primordial radioactivity is widely distributed in the earth
and its environs. This radioactive material and its Byproducts are found mainly in
diverse geological formations around us. Inadequate access to public water supply in
Abuja has forced more than 80 percent of the population of about 5 million to drill
private boreholes. Nigerian drillers are unaware of high concentrations of
radioactivity present in granitic rocks which vary with depth. The radioactivity of
226Ra as well as 232Th decay chains for the lithological rock samples could be at
equilibrium considering the age as well as the isotopic mass proportion which is
assumed to be equal to its natural isotope. Neutron Activation Analysis (NAA) is
adopted for this study with the aim of minimizing sample size as well as less counting
rate in order to estimate the radioactivity concentration in rock samples. Two
boreholes are drilled in Abuja in order to randomly collect the rock samples from
three different layers of each site. All the samples were duplicated for each
radionuclide examination, resulting to twelve samples in all. The results showed that
the activity concentrations of 226Ra, 232Th and 40K in the two sites were in the order
232Th > 226Ra > 40K. 226Ra and 232Th possess activity concentration
Travel Pal is a self-inflating backrest that makes any seat more comfortable. Even seats with built-in Lumbar Support are not flexible enough to meet the support needs
of most individuals.
Travel PAL can be adjusted to fit any back in any seat.
See how renting or selling our backrest can increase your ancillary/incremental revenue.
this is the perfect ppt for mba students ...who are preparing the ppt or project on e-choupal ..thank you for download the ppt ..please download and this ppt....from RNB GLOBAL UNIVERSITY, BIKANER student ;- 1. DIWANSHU GAUR 2. NIKHIL BIHANI ..THANK you all
This presentation gives you information om Clausius Statement, its proof, Entropy change for Open System and reversible and irreversible processes with simple explanation and day to day examples.
Multiprocess passive diffusion driven nano ion filter and brownian motion bat...Michael Changaris
Multiple new developments in physical principals allow for amplification of energy storage through passive and chemically driven process.
Membrane ion selectivity can allow for passive diffusion driven energy storage.
Light and heat can increase rate of Brownian motion enhancing the diffusion gradient and driving ion charge independently (e.g. heat differential in lightning production).
Graphene can organize in a single sheet possibly allowing for more effective harnessing of the ratchet that can drive browning motion into mechanical action.
Ion pumps driven by Nano properties can create ion specific transport driving energy storage and maintaining energy with slower decay.
Chemical cascades if appropriately directed can create a stable far from equilibrium system in which the byproduct of one reaction becomes the catalyst for the next step.
With sufficient complexity and properties of phase shift these cascades can drive each other through interacting oscillatory patterns for the life of the battery and time for needed for energy storage.
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.
Organometal halide perovskite solar cells: Degradation and stabilityTaame Abraha Berhe
Organometal halide perovskite solar cells have evolved in an exponential manner in the two key areas of
efficiency and stability. The power conversion efficiency (PCE) reached 20.1% late last year. The key disquiet
was stability, which has been limiting practical application, but now the state of the art is promising, being
measured in thousands of hours. These improvements have been achieved through the application of
different materials, interfaces and device architecture optimizations, especially after the investigation of hole
conductor free mesoporous devices incorporating carbon electrodes, which promise stable, low cost
and easy device fabrication methods. However, this work is still far from complete.
1. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
Address: 82 Waterloo St., Kitchener, ON, Canada
Research Interests
Flexible electronic device design and fabrication
Organic materials development
Biosensors and probes
Education
PhD: Chemical Engineering, University of Waterloo, Canada
Sep 2012 – Jan 2016
Supervisors: Prof. Yuning Li & Prof. Hany Aziz
Thesis: High Performance n-Type Polymer Semiconductors for Printed Logic
Circuits
Authored 25 journal publications (5 first author and 3 equally contributed
works)
MASc: Chemical Engineering, University of Waterloo, Canada
Jan 2011-Aug 2012
Supervisors: Prof. Yuning Li & Prof. Hany Aziz
Thesis: High Performance Polymer Semiconductors for Organic Thin-Film
Transistors
Authored 3 journal publications (1 first author works)
MSc:Chemistry and Physics of Polymer, Nanjing University, China
Sep 2007-Jun 2010
Supervisor: Prof. Qundong Shen
Authored 4 journal publications (2 first author works)
BSc:Chemistry, Nanjing University, China, Jun 2006
Research Experience
Sep 2012 – Dec 2015
Development of high mobility polymer semiconductors, fabrication of organic
thin-film transistors (OTFTs), and n-type only polymer semiconductors (PSCs)
by electrodes modification or PSCs unipolarization by doping for complimentary
2. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
2
circuits
Research Accomplishments:
Developed polymer semiconductor with record high electron mobility based
on new building block using Stille Coupling polymerization
Obtained electron transport only OTFTs using ambipolar and p-type polymer
semiconductors with modification of electrodes
Converted ambipolar and p-type polymer semiconductors into n-type only
semiconductors by doping with Polyethyleneimine (PEI)
Achieved conversion of ambipolar polymer semiconductors into n-type only
semiconductors by employing trapping mechanism
Printed complimentary inverters with high performance
Identified enhancement of polymer molecular ordering and charge transport
assisted by oligomers through antiplasticization effect
Jan 2011-Aug 2012
Development of high mobility polymer semiconductors, Fabrication of organic
thin-film transistors (OTFTs)
Developed thermally cleavable polymer semiconductors
Established OTFT fabrication process and characterization methods
Sep 2007-Aug 2010
Development of fluorescent and magnetic bifunctional nanocomposites for bio
(intracellular) probes
Made water dispersible magnetic nanoparticles with negatively charged
surface
Synthesized water soluble fluorescent polymers
Developed fluorescently multicolored (blue, green, and yellow)
nanocomposites which are response to magnetic field.
Employed bifunctional nanocomposites with negatively or positively charged
surface in cancer cell as probes
Identified the position of nanocomposites in cancer cells
Skills
Strong background in organic synthesis, several polymer semiconductors
based on new building block and water soluble fluorescence polymers were
obtained. Expertise in with Stille, Suzuki, and Yamamoto polymerizations.
Comfortable with use of material characterization equipment including
1H-NMR, 13C-NMR, UV-Vis, FT-IR, TGA, DSC, Ellipsometer, Fluorometer,
Cyclic voltammetry, Dektak Profilometer, and expertise in XRD
measurement on films.
Primer user of AFM in the Giga-to-Nano (G2N) lab for management,
training
3. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
3
Clean room research experience in fabricating OTFTs. Familiar with
photolithography, thermal deposition for metal, metal oxide and organic
semiconductor materials, spin-coating process.
Skilled in the use of AutoCAD, designed probe station for I-V
characterization on small (100um) devices, photo masks for transistor
patterns (as small as 2um), and shadow masks for thermal deposition.
Professional in the characterization (I-V, C-V) of semiconductor devices
(OTFTs, inverters, and hole/electron only devices) through four-point probe
measurements by using semiconductor parameter analyzer (Agilent &
Keithley).
Competent in the synthesis of nanomaterials (magnetic nanoparticles),
fabrication of water dispensable nanocomposites, and incubation of cancer
cells. Experience in 3D analysis of cells by Confocal laser scanning
microscopy (CLSM), and identifying cell ultrathin section by TEM.
Strong communication skills, collaboration with other groups and institutes.
Additional Experience
Teaching Assistant, University of Waterloo, Canada
May 2011 - Dec 2013
Mentored Chemical Engineering undergraduate students by teaching them
theory and laboratory experiences.
ChE 390 Chemical Engineering Lab, topics about fluid mechanics, physical
chemistry and kinetics, materials properties and testing.
ChE 231 Physical Chemistry
ChE 102 Chemistry for Engineers (chemical principles)
ChE 100 Chemical Engineering Concepts 1 (lab on fundamentals of
engineering calculations)
Awards
Waterloo Institute for Nanotechnology Fellowship, University of Waterloo –
2015
Waterloo Institute for Nanotechnology Fellowship, University of Waterloo –
2014
Institute for Polymer Research Award, University of Waterloo –2014
Publications (H-index: 13; i10-index: 15)
1. Sun, B.; Hong, W.; Thibau, E.; Aziz, H.; Lu, Z.-H.; Li, Y. Polyethylenimine (PEI)
as an effective dopant to conveniently convert ambipolar and p-type polymers
4. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
4
into unipolar n-type polymers. ACS Appl. Mater. Interfaces 2015, 7, 18662-18671
2. Sun, B.; Hong, W.; Aziz, H.; Li, Y. A Pyridine-flanked Diketopyrrolopyrrole
(DPP)-based Donor-acceptor Polymer Showing High Mobility in Ambipolar and
N-channel Organic Thin Film Transistors. Polym. Chem. 2015, 6, 938-945.
3. Deng, Y.; Sun, B.; He, Y.; Quinn, J.; Guo, C.; Li, Y., Thiophene-S,S-dioxidized
Indophenine: A Quinoid-type Building Block with High Electron Affinity for
Constructing n-Type Polymer Semiconductors with Narrow Band Gaps. Angew.
Chem. Int. Ed. 2016, DOI: 10.1002/anie.201508781.
4. He, Y.; Guo, C.; Sun, B.; Quinn, J.; Li, Y. Branched alkyl ester side chains
rendering large polycyclic
(3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-di
one (IBDF) based donor-acceptor polymers solution-processable for organic thin
film transistors. Polym. Chem. 2015, DOI: 10.1039/C5PY00782H
5. Pouliot, J.-R.; Sun, B.; Leduc, M.; Najari, A.; Li, Y.; Leclerc, M. A high mobility
DPP-based polymer obtained via direct (hetero)arylation polymerization. Polym.
Chem. 2015, 6, 278-282.
6. Murphy, L.; Sun, B.; Hong, W.; Aziz, H.; Li, Y. Study of Vertical and Lateral
Charge Transport Properties of DPP-Based Polymer/PC61BM Films Using Space
Charge Limited Current (SCLC) and Field Effect Transistor Methods and their
Effects on Photovoltaic Characteristics. Aust. J. Chem. 2015,
dx.doi.org/10.1071/CH15283
7. Morin, P.-O.; Bura, T.; Sun, B.; Gorelsky, S. I.; Li, Y.; Leclerc, M. Conjugated
Polymers à la Carte from Time-Controlled Direct (Hetero)Arylation
Polymerization. ACS Macro Letters 2015, 4, 21-24.
8. He, Y.; Guo, C.; Sun, B.; Quinn, J.; Li, Y.
(3E,7E)-3,7-Bis(2-oxoindolin-3-ylidene)-5,7-dihydropyrrolo[2,3-f]indole-2,6(1H,
3H)-dione based polymers for ambipolar organic thin film transistors. Chem.
Commun. 2015, 51, 8093-8096.
9. Hong, W.; Guo, C.; Sun, B.; Li, Y. (3Z,3[prime or minute]Z)-3,3[prime or
minute]-(Hydrazine-1,2-diylidene)bis(indolin-2-one) as a new electron-acceptor
building block for donor-acceptor [small pi]-conjugated polymers for organic thin
film transistors. J. Mater. Chem. C 2015, 3, 4464-4470.
10. Hong, W.; Chen, S.; Sun, B.; Arnould, M. A.; Meng, Y.; Li, Y. Is a polymer
semiconductor having a "perfect" regular structure desirable for organic thin film
transistors? Chemical Science 2015, 6, 3225-3235.
11. Guo, C.; Quinn, J.; Sun, B.; Li, Y. An indigo-based polymer bearing
thermocleavable side chains for n-type organic thin film transistors. J. Mater.
Chem. C 2015. DOI: 10.1039/C5TC00512D
12. Deng, Y.; Sun, B.; He, Y.; Quinn, J.; Guo, C.; Li, Y.
(3E,8E)-3,8-Bis(2-oxoindolin-3-ylidene)naphtho-[1,2-b:5,6-b[prime or
minute]]difuran-2,7(3H,8H)-dione (INDF) based polymers for organic thin-film
transistors with highly balanced ambipolar charge transport characteristics. Chem.
Commun. 2015. DOI: 10.1039/C5CC03917G
5. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
5
13. Yan, Z.; Sun, B.; Guo, C.; Li, Y. Synthesis and properties of azothiazole based
[small pi]-conjugated polymers. J. Mater. Chem. C 2014, 2, 7096-7103.
14. Wang, Q.; Sun, B.; Aziz, H. Exciton–Polaron-Induced Aggregation of
Wide-Bandgap Materials and its Implication on the Electroluminescence Stability
of Phosphorescent Organic Light-Emitting Devices. Adv. Funct. Mater. 2014, 24,
2975-2985.
15. Sun, B.; Hong, W.; Yan, Z.; Aziz, H.; Li, Y. Record High Electron Mobility of 6.3
cm2V−1s−1 Achieved for Polymer Semiconductors Using a New Building Block.
Adv. Mater. 2014, 26, 2636-2642. [54 citations]
16. Sun, B.; Hong, W.; Thibau, E.; Aziz, H.; Lu, Z.-H.; Li, Y. Facile Conversion of
Polymer Organic Thin Tilm Transistors From Ambipolar and p-Type into
Unipolar n-Type Using Polyethyleneimine (PEI)-modified Electrodes. Org.
Electron. 2014, 15, 3787-3794.
17. Guo, C.; Sun, B.; Quinn, J.; Yan, Z.; Li, Y. Synthesis and properties of indigo
based donor-acceptor conjugated polymers. J. Mater. Chem. C 2014, 2,
4289-4296.
18. Guo, C.; Sun, B.; Li, Y. Synthesis and properties of
pyrrolo[3,4-c]pyrrole-1,3-dione based polymer semiconductors and their
performance in organic thin film transistors. Polym. Chem. 2014, 5, 5247-5254.
19. Chen, S.; Sun, B. (equally contributed); Hong, W.; Yan, Z.; Aziz, H.; Meng, Y.;
Hollinger, J.; Seferos, D. S.; Li, Y. Impact of N-substitution of a carbazole unit on
molecular packing and charge transport of DPP-carbazole copolymers. J. Mater.
Chem. C 2014, 2, 1683-1690.
20. Chen, S.; Sun, B. (equally contributed); Hong, W.; Aziz, H.; Meng, Y.; Li, Y.
Influence of side chain length and bifurcation point on the crystalline structure
and charge transport of diketopyrrolopyrrole-quaterthiophene copolymers
(PDQTs). J. Mater. Chem. C 2014, 2, 2183-2190.
21. Chen, S.; Sun, B. (equally contributed); Guo, C.; Hong, W.; Meng, Y.; Li, Y. 3,3
'-(Ethane-1,2-diylidene)bis(indolin-2-one) based conjugated polymers for organic
thin film transistors. Chem. Commun. 2014, 50, 6509-6512.
22. Yan, Z. Q.; Sun, B.; Li, Y. N. Novel stable
(3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo 1,2-b:4,5-b '
difuran-2,6(3H,7H)-dione based donor-acceptor polymer semiconductors for
n-type organic thin film transistors. Chem. Commun. 2013, 49, 3790-3792. [29
citations]
23. Sun, B.; Hong, W.; Aziz, H.; Abukhdeir, N. M.; Li, Y. Dramatically Enhanced
Molecular Ordering and Charge Transport of a DPP-based Polymer Assisted by
Oligomers Through Antiplasticization. J. Mater. Chem. C 2013, 1, 4423-4426.
[18 citations]
24. Hong, W.; Sun, B.; Yuen, J.; Li, Y. N.; Lu, S. F.; Huang, C.; Facchetti, A.
Dipyrrolo 2,3-b:2 ',3 '-e pyrazine-2,6(1H,5H)-dione Based Conjugated Polymers
for Ambipolar Organic Thin-film Transistors. Chem. Commun. 2013, 49,
484-486.
6. Bin Sun
B29sun@uwaterloo.ca, +1-226-978-3255
6
25. Hong, W.; Guo, C.; Sun, B.; Yan, Z. Q.; Huang, C.; Hu, Y.; Zheng, Y.; Facchetti,
A.; Li, Y. N. Cyano-disubstituted dipyrrolopyrazinedione (CNPzDP) small
molecules for solution processed n-channel organic thin-film transistors. J. Mater.
Chem. C 2013, 1, 5624-5627.
26. Sun, B.; Hong, W.; Aziz, H.; Li, Y. N. Diketopyrrolopyrrole-based
semiconducting polymer bearing thermocleavable side chains. J. Mater. Chem.
2012, 22, 18950-18955.
27. Li, Y.; Sun, B.; Sonar, P.; Singh, S. P. Solution processable
poly(2,5-dialkyl-2,5-dihydro-3,6-di-2-thienyl-pyrrolo 3,4-c pyrrole-1,4- dione)
for ambipolar organic thin film transistors. Org. Electron. 2012, 13, 1606-1613.
28. Hong, W.; Sun, B.; Aziz, H.; Park, W. T.; Noh, Y. Y.; Li, Y. N. A Conjugated
Polyazine Containing Diketopyrrolopyrrole for Ambipolar Organic Thin Film
Transistors. Chem. Commun. 2012, 48, 8413-8415. [28 citations]
29. Sun, B.; Sun, M. J.; Gu, Z.; Shen, Q. D.; Jiang, S. J.; Xu, Y.; Wang, Y.
Conjugated Polymer Fluorescence Probe for Intracellular Imaging of Magnetic
Nanoparticles. Macromolecules 2010, 43, 10348-10354.
30. Sun, B.; Zhang, Y.; Gu, K. J.; Shen, Q. D.; Yang, Y.; Song, H. Layer-by-Layer
Assembly of Conjugated Polyelectrolytes on Magnetic Nanoparticle Surfaces.
Langmuir 2009, 25, 5969-5973.
31. Song, H.; Sun, B.; Gu, K. J.; Yang, Y.; Zhang, Y.; Shen, Q. D. Interactions
Between Cationic Conjugated Polyelectrolyte and DNA and a Label-Free Method
for DNA Detection Based on Conjugated Polyelectrolyte Complexes. J. Appl.
Polym. Sci. 2009, 114, 1278-1286.
32. Zhang, Y.; Yang, Y.; Wang, C.; Sun, B.; Wang, Y.; Wang, X.-Y.; Shen, Q.-D.
Cationic water-soluble poly(p-phenylene vinylene) for fluorescence sensors and
electrostatic self-assembly nanocomposites with quantum dots. J. Appl. Polym.
Sci. 2008, 110, 3225-3233.