Chemically resolved photovoltage measurements in CdSe nanoparticle films.
Light-induced chemically resolved electrical measurements (CREM) under controlled electrical conditions are used to study photovoltaic effects at selected regions in nanocrystalline CdSe-based films. The method, based on X-ray photoelectron spectroscopy (XPS), possesses unique capabilities for exploring charge trapping and charge transport mechanisms, combining spectrally filtered input signals with photocurrent detection and with a powerful, site-selective, photovoltage probe.
Cohen
Hagai
H
Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot 76100, Israel. hagai.cohen@weizmann.ac.il
Sarkar
Shaibal K
SK
Hodes
Gary
G