Enhanced performance of flexible ZnO nanowire based room-temperature oxygen sensors by piezotronic effect

Simiao Niu; Youfan Hu; Xiaonan Wen; Yusheng Zhou; Fang Zhang; Long Lin; Sihong Wang; Zhong Lin Wang

doi:10.1002/adma.201301262

Enhanced performance of flexible ZnO nanowire based room-temperature oxygen sensors by piezotronic effect

Adv Mater. 2013 Jul 19;25(27):3701-6. doi: 10.1002/adma.201301262. Epub 2013 May 29.

Authors

Simiao Niu¹, Youfan Hu, Xiaonan Wen, Yusheng Zhou, Fang Zhang, Long Lin, Sihong Wang, Zhong Lin Wang

Affiliation

¹ School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA.

PMID: 23716262
DOI: 10.1002/adma.201301262

Abstract

A flexible oxygen sensor based on individual ZnO nanowires is demonstrated with high sensitivity at room temperature and the influence of the piezotronic effect on the performance of this oxygen sensor is investigated. By applying a tensile strain, the already very high sensitivity due to the Schottky contact and pre-treatment of UV light is even further enhanced.

Keywords: ZnO nanowires; flexible; oxygen sensors; piezotronic effects; room temperature.