Light-Induced Charge Separation at Sensitized Sol−Gel Processed Semiconductors
Chemistry of Materials1997Vol. 9(11), pp. 2341–2353
Citations Over TimeTop 10% of 1997 papers
Jeremy M. Stipkala, Felix N. Castellano, Todd A. Heimer, Craig A. Kelly, Kenneth J. T. Livi, Gerald J. Meyer
Abstract
The photophysical properties of molecular sensitizers incorporated within sol−gel processed wide-bandgap semiconductors are reviewed. Excited-state interfacial electron transfer in sensitized colloids and colloidal films provides a basis for the conversion of photons into potential energy. Sol−gel processed materials with high transparency in the visible region allow charge separation and recombination processes to be quantified spectroscopically. The yields and dynamics of these processes are reviewed for a wide variety of sensitizer−semiconductor assemblies. Implications for solar energy conversion and other molecular device applications are discussed.
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