Environmentally stable/self-powered ultraviolet photodetectors with high sensitivity

Shengxue Yang, Sefaattin Tongay, Shu Shen Li, Jian Bai Xia, Junqiao Wu, Jingbo Li

Research output: Contribution to journalArticle

19 Scopus citations


Here, we demonstrate self-powered ultraviolet photodetectors that are capable of generating opposite current flow when illuminated at different wavelengths. The photodetectors are composed of n-ZnO/Polyaniline (PANI) p-n and PANI/ZnGa2O4 type-II heterojunctions and operate without any need for external power source. Devices display superior stability in ambient conditions within months. Results provide opportunities for developing devices for optical recognition.

Original languageEnglish (US)
Article number143503
JournalApplied Physics Letters
Issue number14
StatePublished - Oct 21 2013
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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