Using electric pulse and laser to trigger a sharp and nonvolatile change of lateral photovoltage in nano-carbon film
- The State Key Laboratory on Local Fiber-Optical Communication Networks and Advanced Optical Communication Systems, Department of Physics and Astronomy, Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)
A greatly enhanced lateral photovoltage (LPV) triggered by electric pulse has been observed in nano-carbon oxide semiconductor (COS) structures. The original maximal output signal of lateral photovoltage achieved in these structures is 9.8 mV. However, by combining the application of a 60 V voltage pulse with laser illumination, the LPV can reach a very high value of 183 mV and the change ratio after 60 V pulse is nearly 1800%. In addition, the states of these light and electric-pulse triggered COSs are permanently changed, showing a non-volatile characteristic. We attribute this phenomenon to the trapping effect of stimulated electrons in COSs. The work suggests an approach for tailoring LPV-based devices by electric pulse and will be useful for the development of electric pulse modulated photodetectors.
- OSTI ID:
- 22591497
- Journal Information:
- Applied Physics Letters, Vol. 108, Issue 13; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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