期刊
APPLIED PHYSICS LETTERS
卷 100, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3676278
关键词
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资金
- Institute of Applied Physics of the University of Hamburg
- DFG [ME 1380/16-1]
The charge state of free standing axial type-II CdSe/CdTe hetero-nanowires is monitored via electrostatic force microscopy. The CdSe and the CdTe segment which are identified by Raman spectroscopy are found to be negatively and positively charged, respectively. The charge state is monitored without and with local illumination. We found that the magnitude of opposite charging in the respective nanowire segment is increasing with illumination power, which is attributed to a charge separation of the photogenerated electron-hole pairs across the CdSe/CdTe interface. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3676278]
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