Photocurrent multiplication in organic pigment films
- 10 January 1994
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (2), 187-189
- https://doi.org/10.1063/1.111527
Abstract
Large photocurrent multiplication reaching 10 000 times has been observed in a perylene pigment film sandwiched between Auelectrodes. The phenomenon occurs at the interface between the perylene film and a negatively biased Auelectrode and is found to be associated with electron injection from the Auelectrode to the perylene film through the depletion layer formed in the pigment film under a high electric field, which is built up by the photoaccumulated space charges of trapped holes near the interface.Keywords
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