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 (US)
Title of host publicationICPS 2013 - International Conference on Photonics Solutions
DOIs
StatePublished - Sep 18 2013
EventInternational Conference on Photonics Solutions, ICPS 2013 - Pattaya City, Thailand
Duration: May 26 2013May 28 2013

Publication series

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

Other

OtherInternational Conference on Photonics Solutions, ICPS 2013
CountryThailand
CityPattaya City
Period05/26/1305/28/13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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