Photoelectrocatalysis: Principles, nanoemitter applications and routes to bio-inspired systems
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An overview on processes that are relevant in light-induced fuel generation, such as water photoelectrolysis or carbon dioxide reduction, is given. Considered processes encompass the photophysics of light absorption, excitation energy transfer to catalytically active sites and interfacial reactions at the catalyst/solution phase boundary. The two major routes envisaged for realization of photoelectrocatalytic systems, e.g. bio-inspired single photon catalysis and multiple photon inorganic or hybrid tandem cells, are outlined. For development of efficient tandem cell structures that are based on non-oxidic semiconductors, stabilization strategies are presented. Physical surface passivation is described using the recently introduced nanoemitter concept which is also applicable in photovoltaic (solid state or electrochemical) solar cells and first results with p-Si and p-InP thin films are presented. Solar-to-hydrogen efficiencies reach 12.1% for homoepitaxial InP thin films covered with Rh nanoislands. In the pursuit to develop biologically inspired systems, enzyme adsorption onto electrochemically nanostructured silicon surfaces is presented and tapping mode atomic force microscopy images of heterodimeric enzymes are shown. An outlook towards future envisaged systems is given. © 2010 The Royal Society of Chemistry.
Published Version (Please cite this version)10.1039/b915922n
Publication InfoLewerenz, HJ; Heine, C; Skorupska, K; Szabo, N; Hannappel, T; Vo-Dinh, T; ... Muñoz, AG (2010). Photoelectrocatalysis: Principles, nanoemitter applications and routes to bio-inspired systems. Energy and Environmental Science, 3(6). pp. 748-760. 10.1039/b915922n. Retrieved from https://hdl.handle.net/10161/4115.
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R. Eugene and Susie E. Goodson Distinguished Professor of Biomedical Engineering
Dr. Tuan Vo-Dinh is R. Eugene and Susie E. Goodson Distinguished Professor of Biomedical Engineering, Professor of Chemistry, and Director of The Fitzpatrick Institute for Photonics.Dr. Vo-Dinh’s research activities and interests involve biophotonics, nanophotonics, plasmonics, laser-excited luminescence spectroscopy, room temperature phosphorimetry, synchronous luminescence spectroscopy, surface-enhanced Raman spectroscopy, field environmental instrumentation, fiberoptics s