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

Der Hsien Lien, Jr Hau He, Si Chen Lee, Zhenghong Dong, Dan Wang

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 publicationICPS 2013 - International Conference on Photonics Solutions
Pagesxxi-xxii
DOIs
StatePublished - 2013
EventInternational Conference on Photonics Solutions, ICPS 2013 - Pattaya City, Thailand
Duration: 26 May 201328 May 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8883
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Photonics Solutions, ICPS 2013
CountryThailand
CityPattaya City
Period26/05/1328/05/13

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