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New Photocatalytics Study Findings Recently Were Reported by Researchers at Brookhaven National Laboratory (Prolonged Hot Electron Dynamics in...

September 3, 2014



New Photocatalytics Study Findings Recently Were Reported by Researchers at Brookhaven National Laboratory (Prolonged Hot Electron Dynamics in Plasmonic-Metal/Semiconductor Heterostructures with Implications for Solar Photocatalysis)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Investigators publish new report on Photocatalytics. According to news reporting originating in Upton, New York, by VerticalNews journalists, research stated, "Ideal solar-to-fuel photocatalysts must effectively harvest sunlight to generate significant quantities of long-lived charge carriers necessary for chemical reactions. Here we demonstrate the merits of augmenting traditional photoelectrochemical cells with plasmonic nanoparticles to satisfy these daunting photocatalytic requirements."

The news reporters obtained a quote from the research from Brookhaven National Laboratory, "Electrochemical techniques were employed to elucidate the mechanics of plasmon-mediated electron transfer within Au/TiO2 heterostructures under visible-light (lambda > 515 nm) irradiation in solution. Significantly, we discovered that these transferred electrons displayed excited-state lifetimes two orders of magnitude longer than those of electrons photogenerated directly within TiO2 via UV excitation."

According to the news reporters, the research concluded: "These long-lived electrons further enable visible-light-driven H-2 evolution from water, heralding a new photocatalytic paradigm for solar energy conversion."

For more information on this research see: Prolonged Hot Electron Dynamics in Plasmonic-Metal/Semiconductor Heterostructures with Implications for Solar Photocatalysis. Angewandte Chemie-International Edition, 2014;53(30):7887-7891. Angewandte Chemie-International Edition can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany.

Our news correspondents report that additional information may be obtained by contacting J.S. DuChene, Brookhaven Natl Lab, Center Funct Nanomat, Upton, NY 11973, United States. Additional authors for this research include B.C. Sweeny, A.C. Johnston-Peck, D. Su, E.A. Stach and W.D. Wei.

Keywords for this news article include: Upton, New York, Electronics, United States, Photocatalyst, Semiconductor, Nanotechnology, Emerging Technologies, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Electronics Newsweekly


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