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Characteristics of photodetectors with TiO2 nanorod arrays

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10 Author(s)
Wei-Shun Shih ; Inst. of Electro-Opt. & Mater. Sci., Nat. Formosa Univ., Yunlin, Taiwan ; Liang-Wen Ji ; Huei-Wen Shiu ; Sheng-Joue Young
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TiO2 is one of most widely studied and important materials for science application. A photodetectors (PDs) with TiO2 nanorod arrays (TNAs) has been fabricated and characterized in this work. We report that the UV response of such a PDs has been enhanced about 4 orders of magnitude. This giant enhancement in photoresponsivity can be attributed to TNAs, because TNAs provide a directed path for electrical transport and increase optical absorption. The results indicate that TNAs are useful and attractive in the application of UV detectors.

Published in:

Nanoelectronics Conference (INEC), 2011 IEEE 4th International

Date of Conference:

21-24 June 2011

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