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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
  • *Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-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
Subtitle of host publicationInternational Conference on Photonics Solutions
EditorsPrathan Buranasiri, Sarun Sumriddetchkajorn
PublisherSPIE
Pagesxxi-xxii
ISBN (Print)9780819497451
DOIs
Publication statusPublished - May 2013
Externally publishedYes
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)
PlaceThailand
CityPattaya City
Period26/05/1328/05/13

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