期刊
APPLIED PHYSICS LETTERS
卷 98, 期 15, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3578194
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资金
- Department of Science and Technology, India [SR/S5/NM-05/2004]
Reversible control of the photoluminescence of ZnO occurring in the visible range, has been achieved by application of a few volts (<5 V) to a device consisting of nanostructured ZnO film sandwiched between indium tin oxide electrode and polyethylene oxide-lithium perchlorate, a solid polymer electrolyte. The photoluminescence intensity shows nearly 100% modulation with a response time less than 30 s, when the bias is applied at the electrolyte electrode. A model is proposed for the observed effect that is based on defect states of ZnO and the band bending at the ZnO-electrolyte interface that can be changed by the applied bias. (C) 2011 American Institute of Physics. [doi:10.1063/1.3578194]
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