Multiple-shelled hollow microspheres integrated by ZnO nanodots as UV photodetectors for use in space with omnidirectional supersensitivity

Der Hsien Lien, Jr Hau He*, Zhenghong Dong, Dan Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate a novel, feasible strategy on practical application of UV photodetectors using multiple-shelled hollow ZnO microspheres integrated by nanodots for space application with omnidirectional sensitivity. Due to the resonance-assisted effect by the convex shells, the microsphere devices exhibits enhanced photoresponse with photogain of G ~ 10. Moreover, the response and recovery speed are promoted (response/recovery times: 0.8/1.2 ms) because of the existence of junction barriers between microspheres. We also demonstrated the omnidirectional detectability and proton tolerance ability of the microsphere devices as a reliable test for space use. The concept employing multiple-shelled hollow ZnO microspheres paves a new way to realize nanostructured photodetectors using in harsh environment and space mission.

Original languageEnglish
Title of host publicationNanophotonics, Nanoelectronics and Nanosensor, N3 2013
PublisherOptical Society of America (OSA)
PagesNSa4A.4
ISBN (Print)9781557529763
DOIs
StatePublished - 2013
EventNanophotonics, Nanoelectronics and Nanosensor, N3 2013 - Wuhan, China
Duration: 25 May 201326 May 2013

Publication series

NameNanophotonics, Nanoelectronics and Nanosensor, N3 2013

Conference

ConferenceNanophotonics, Nanoelectronics and Nanosensor, N3 2013
Country/TerritoryChina
CityWuhan
Period25/05/1326/05/13

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