Details

Autor(en) / Beteiligte

• Liu, Jinzhang
• Motta, Nunzio
• Lee, Soonil

Titel

Ultraviolet photodetection of flexible ZnO nanowire sheets in polydimethylsiloxane polymer

Ist Teil von

• Beilstein journal of nanotechnology, 2012-05, Vol.3 (1), p.353-359

Ort / Verlag

Germany: Beilstein-Institut

Erscheinungsjahr

2012

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• ZnO nanowires are normally exposed to an oxygen atmosphere to achieve high performance in UV photodetection. In this work we present results on a UV photodetector fabricated using a flexible ZnO nanowire sheet embedded in polydimethylsiloxane (PDMS), a gas-permeable polymer, showing reproducible UV photoresponse and enhanced photoconduction. PDMS coating results in a reduced response speed compared to that of a ZnO nanowire film in air. The rising speed is slightly reduced, while the decay time is prolonged by about a factor of four. We conclude that oxygen molecules diffusing in PDMS are responsible for the UV photoresponse.