Chemically resolved photovoltage measurements in CdSe nanoparticle films |
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Authors: | Cohen Hagai Sarkar Shaibal K Hodes Gary |
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Affiliation: | Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot 76100, Israel. hagai.cohen@weizmann.ac.il |
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Abstract: | 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. |
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