MOTIVATION• Grow high purity materials• Source material is powder of any form• Greater quantity with less source material• No gas molecules in between• Versatility in composition of deposit• Produces unusual microstructures• Eliminate pollutants
Let’s Cook: Our Recipe and Ingredients• A small amount of Semiconducting Oxide powder was loaded in a close-end quartz tube• Was attached to the High Vacuum System for sealing at 10-6 Torr
• Let’s Bake!• The sealed quartz tube was placed in a tube furnace set with the desired growth temperature 900ºC 700ºC 400ºC
• Temperature and Deposition Time Dependence of the Geometrical Properties of Tin Oxide Nanostructures• Gil Nonato C. Santos, Arnel A. Salvador, Reuben V. Quiroga International Journal of Scientific & Engineering Research Volume 2, Issue 10, October-2011 ISSN 2229-5518
Synthesized SnO2 Nanomaterial via the HVPG Bed of Nanowires Noodle Nanowires (Oishi)Bon Jovi’s other version of Bed of Roses
Nanobelts• Nanobelts are have a well-defined geometrical shape and side surfaces.• Typical widths is in the range of 50 to 300 nm• Thicknesses are 10 to 30 nm.
Physics Society of the Philippines (Samahang Pisika ng Pilipinas)• The Nanobelts were featured in the first Physics Journal in the Philippines
Different growth temperature produced remarkable structures Do you like vegetables? Nanocauliflower Nanobolo (Machete) (2nd Prize –photo micrograph contest
SnO2 Nanomaterial on Si Substrate• Silicon is an effective substrate for SnO2 nanomaterial.• Nanorods and nanobelts are grown without nanoparticles.
Best Paper and Oral Presentation Award - MICROSPHIL
Nanobelt for gas flow sensors Dr. Z.L. Wang (UAPT PI)Material Science & EngineeringGeorgia Institute of Technology
Two-probe measurements of electric conductance of Nanobelts under ambient temperatureThe electric conductance of the nanobelt depends on the type and amount of molecules adsorbed on its surface
High Resolution SEM image of the SnO2 Nanomaterial• The surface of the SnO2 nanomaterial is porose and composed of many uniform crystalline grains.• It suggests that this nanomaterial is suitable for fabricating gas sensors because of the porosity over large surface.
Photoluminescence of SnO2 Nanomaterials • SnO2 Nanomaterial was excited with a UV lamp • The luminescence was a blue visible light emission.
2009 International Sustainable World Energy,Engineering, and Environment Project(I-SWEEEP) Olympiad in Houston, TexasSimon Anthony Lorenzo and HannahCarize Sangalang won a silver medal forthe Philippines with their projectentitled “Development of CarbonNanomaterial as an Electrode VoltageSource” in the Senior Engineeringcategory
Carissa May Enriquez and Kevin Bryan Jose A – conducting polymerreceived an Honorable Mention award for their B – SnO2 Nanomaterial on Siproject “Development of an Organic Battery C – GlassUsing P-Toluene Polypyrrole as a Potential E - PCBElectrode Voltage Source and Coconut (Cocosnucifera) Vinegar as Electrolyte
ZnO Nanomaterials – A. Ladines Presented at ICMAT 2009 Singapore 3rd Place Photomicrography – Microsphil Finalist- DOST MS Thesis – Materials Science
Synthesis and Characterization of In2O3NanomaterialsGwen B. Castillon, Gil Nonato C. Santos 3rd Best Paper and Oral Presentation - Microsphil International Journal of Scientific & Engineering Research, Volume 3, Issue 2, February-2012 ISSN 2229-5518
Synthesis of α-Fe2O3 Nanomaterials on Silicon Substrate Using Horizontal Vapor Phase Growth Technique• Lim, T. de los Reyes, R., D., Castillon, G., Ladines, A. Santos, G. N. C., Quiroga, R. V. DLSU Solid State Physics Research Laboratory
Fabrication of Gallium Nitride Nanomaterials Grown by Horizontal Unseeded Vapor Phase Growth Technique• Anciado, R. R., Alcantara, N., Castillon, G., Ladines, A., de los Reyes, R. Santos, G. N. C., Quiroga, R. V. DLSU Solid State Physics Department
Synthesis andCharacterizationof TiO2NanomaterialsonSilicon Substrateby ModifiedHorizontalVapor PhaseGrowth • Abrasaldo, P. M. B., (BPI DOST AWARDEE)Technique Castillon, G., Ladines, A., de los Reyes, R. Santos, G. N. C., Quiroga, R. V.
Synthesis and Photoluminescence of Gold Nanostructures Using Horizontal Vapor Phase Growth Technique• Kahn, D., Ladines, A., Castillon, G., de los Reyes, R., Santos, G. N. C., Quiroga, R. V.
Preliminary THz-TDSMeasurements ofPolypyrrole with VaryingM of Na (p-TS) CompositeNanomaterial Mazano, C., Manzano, R., Santos, G. N. C., Quiroga, R. DLSU Solid State Physics Laboratory Takage, Que, C., Furuya, T., Yamamoto, K., Tani, M. Research Center for Development of Far-Infrared Region, University of Fukui
The Effect of Growth Finalist- DOST MS Thesis – Physics Temperature, Dwell Time, and Orientation of the Thermal Gradient to the Gravitational Field in the Synthesis of CdS Nanomaterials using the Vapor Phase Crystal Growth Technique Eduardo B. Tibayan Jr., Gil Nonato C. Santos, Reuben V. QuirogaInternational Journal of Scientific & EngineeringResearchVolume 2, Issue 10, October-2011ISSN 2229-5518
Synthesis and Characterizationof SuperconductingMagnesium Diboride MgB2Nanomaterials throughHorizontal Vapor Phase CrystalGrowth TechniqueRenante C. Embalzado, Gil Nonato C. Santos,Reuben V. QuirogaInternational Journal of Scientific &Engineering Research, Volume 3, Issue 2,February-2012ISSN 2229-5518 UP NIP CMPL Lab
Characterization ofSilverNanomaterials,Synthesized by theHorizontal VaporPhase CrystalGrowth Techniquefor AntimicrobialPurposesWilfred Espulgar, Gil Nonato C. Santos International Journal of Scientific & Engineering Research Volume 2, Issue 8, August-2011 1 ISSN 2229-5518
Synthesis andCharacterization of C-AgComposite Nanomaterialfor Battery ElectrodeApplicationRuby Michelle N. Buot,Gil Nonato C. SantosInternational Journal of Scientific &Engineering Research Volume 3, Issue2, February-2012ISSN 2229-5518
A B C Gold Medal – MS Thesis• Cadmium Selenide Quantum Dots Synthesized by D E Counts PL HVPC Growth 6000 Se Elmt Spect. Element Atomic Type % % Intensity (arb. Units) Technique for 4000 Au Se L Cd L Total ED 50.53 59.25 ED 49.47 40.75 100.00 100.00 Sensing Copper ion 2000 0 Au Se Au Cd Cd Cd Au Au Au Au Se Se Au Concentrations 0 5 10 15 20 Energy (keV) Wavelength (nm) International Journal of Scientific & Engineering• Arra C. Quitaneg, Gil Nonato Research Volume 2, Issue 12, December 2011 C. Santos ISSN 2229-5518
• Fabrication and Characterization of Dye- Sensitized Solar Cell (DSSC) Using Nanostructured TiO2 as Photoelectrode• Abel F. Ole, GIL NONATO C. SANTOS
• Fabrication and Characterization of Tin Oxide (SnO2) Nanomaterials as Carbon Dioxide (CO2) Gas Sensor• FAITH CELESTE C. BANCOLO, GIL NONATO C. SANTOS
• Bi2S3 Nanowires Fabricated via Horizontal Vapor Phase Crystal (HVPC) Growth Technique for Photosensor Application• BHEIM M. LLONA, GIL NONATO C. SANTOS
• Synthesis and Characterization of Iron Oxide Nanomaterials using Horizontal Vapor Phase Crystal (HVPC) Growth Technique for Glucose Sensing Application• DONNA MARIE B. DE MESA, GIL NONATO C. SANTOS
CATALYTICPERFORMANCE OFAHYDROGEN FUEL CELLWITH PLATINUMNANOMATERIALS –COATED GAS DIFFUSIONLAYERRICHARD C. MONSERRAT,Gil Nonato C. Santos
What we are doing right now• Characterize the other properties of Nanomaterials• Understand the growth behavior and characteristics of Nanomaterials• Device Fabrication of Nanomaterials • Environmental Nanomaterial Sensors (Challenge Grant Recipient) • Solar Nanomaterials (AKI Project) • Bio Nanomaterials (Interdisciplinary Research –for funding) • Nanocoatings (DOST PCIEERD)
Fabrication and Characterization of SnO2 Nanomaterialsfor AntiHeat and AntiMicrobial Applications