Our Research Focus Donor Photoinduced electron transfer in light harvesting systems Donor

Our Research Focus Donor Photoinduced electron transfer in light harvesting systems Donor www.phwiki.com

Our Research Focus Donor Photoinduced electron transfer in light harvesting systems Donor

Young, Michael, Contributing Editor has reference to this Academic Journal, PHwiki organized this Journal – – – – Energy Conversion Charge Transfer Processes Organized Hybrid Assemblies Quantum Dot Solar Cells Nanostructure Architectures as long as Solar Energy Conversion Prashant V. Kamat http://www.nd.edu/~pkamat http://politicalhumor.about.com Increasing

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Our Research Focus Donor Photoinduced electron transfer in light harvesting systems Donor- Acceptor Semiconductor-Sensitizer Semiconductor-Semiconductor Semiconductor-Metal Researchers who make it possible in our group Graduate students Post-Docs/Visiting Scientists Brian Seger (Chem. Eng.) Yochiro Matsunaga Matt Baker (Physics) K. Vinodgopal David Becker (Chem. Eng.) Julie Peller Kevin Tvrdy (Chemistry) Clifton Harris (Chemistry) Undergraduate students Pat Brown Meghan Jebb Sahib Hashimi Chris Beesley Recent Graduates Dr. Julie Peller –CHEM ‘03 (Faculty at IUN) Dr. Roxana Nicolaescu – CHEM ‘04 (Scientist at Serim) Dr. V Subramanian – CHEM ‘04 (Faculty, U. Nevada) Dr. Istvan Robel – Physics ’07 (Argonne National Lab.) Summer 2007 Applications Design & Synthesis Properties Electron storage, transport in addition to interfacial processes Molecular assemblies, composites & hybrid systems Catalysis, Photovoltaics, Fuel Cells, Sensors

1. Semiconductor Assisted Catalysis Effect of Gold Particle Size on the Catalytic Reduction Efficiency of TiO2 particles Vaidyanathan, Wolf, Kamat J. Am. Chem. Soc., 2004, 126, 4943-4950 2. Quantum Dot Solar Cells Tunable b in addition to edge Offers the possibility to harvest light energy over a wide range of visible-ir light with selectivity Hot carrier injection from higher excited state (minimizing energy loss during thermalization of excited state) Multiple carrier generation solar cells. Utilization of high energy photon to multiple electron-hole pairs

Tuning the Photoresponse of Quantum Dot Solar Cells Advantages High surface area Good electronic conductivity, excellent chemical in addition to electrochemical stability Good mechanical strength 3. Carbon nanostructures as conduits to transport charge carriers Goal Effective utilization of carbon nanostructures as long as improving the per as long as mance of energy conversion devices To develop electrode assembly with CNT supports Improve the per as long as mance of light harvesting assemblies Facilitate charge collection in addition to transport in nanostructured assemblies

Photocurrent Generation CFE/TiO2 versus CFE/SWCNT –TiO2 CFE/TiO2 in addition to CFE/SWCNT/TiO2 films were tested as long as their photoelectrochemical response with UV irradiation (l>300 nm) UV light Charge Equilibration in SWCNT-Semiconductor Composite Kongkan in addition to , A.; Kamat, P.V., Electron Storage in Single Wall Carbon Nanotubes. Fermi Level Equilibration in Semiconductor–SWCNT Suspensions. ACS Nano, 2007. 1, 13-21 The third technique, being developed by Prashant Kamat of the University of Notre Dame, Indiana, in addition to his colleagues, uses that fashionable scientific tool, the carbon nanotube. This is a cylinder composed solely of carbon atoms, in addition to one of its properties is good electrical conductivity. In effect, nanotubes act as wires a few billionths of a metre in diameter. September 16, 2006 Carbon Nanotubes could boost efficiency of solar cells – Researchers at the University of Notre Dame in Indiana say they have found a new in addition to promising way to boost the efficiency of solar cells. In preliminary studies, carbon nanotubes that were engineered into the architecture of semiconductor solar cells. In some cases, the efficiency of solar cells jumped from 5 percent to 10 percent in the presence of carbon nanotubes, according to Prashant Kamat, Ph.D., a professor of chemistry at the University.

Where do we go from here Ti/TiO2 nanotubes OTE/TiO2 nanoparticles Rainbow Solar Cells Current & Future Research

Charge separation Charge collection Organized light harvesting assembly using carbon nanostructures What will the future hold Over the last twenty years, the per-kWh price of photovoltaics has dropped from about $500 to nearly $5; think of what the next twenty years will bring. DOMER RUN 2006

Young, Michael Reason Contributing Editor www.phwiki.com

Young, Michael Contributing Editor

Young, Michael is from United States and they belong to Reason and they are from  Los Angeles, United States got related to this Particular Journal. and Young, Michael deal with the subjects like Culture; Federal Government and Politics

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