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Preparation and Characteristics of Flexible Nanorod-Based Photodetectors

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Abstract:

Metal-semiconductor-metal ultraviolet photodetectors on flexible polyethylene terephthalate (PET) substrates with ZnO nanorods have been characterized. The photoresponsity and UV-to-visible rejection ratio of the ZnO nanorod-based sensor were 0.0409 A/W and 282.59, respectively. Compared to a traditional ZnO photodetector without nanorods, the fabricated novel photodetector showed much higher photoresponsity which could strongly depend on oxygen adsorption and desorption in the presence of trap states at the nanorods surface. It can be attributed to high surface-to-volume ratio of ZnO nanorods.

Keywords: ELECTRICAL PROPERTIES; ELECTRO-OPTICAL EFFECTS; LIQUID PHASE EPITAXY; NANOCRYSTALLINE MATERIALS; WHISKERS

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jno.2010.1114

Publication date: December 1, 2010

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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