Giant photoresistivity and optically controlled switching in self-assembled nanowires
- 19 December 2001
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (26) , 4423-4425
- https://doi.org/10.1063/1.1427156
Abstract
We report the observation of giant photoresistivity in electrochemically self-assembled CdS and ZnSe nanowires electrodeposited in a porous alumina film. The resistance of these nanowires increases by one to two orders of magnitude when exposed to infrared radiation, possibly because of real-space transfer of electrons from the nanowires into the surrounding alumina by photon absorption. This phenomenon has potential applications in “normally on” infrared photodetectors and optically controlled switches.Keywords
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