TY - GEN
T1 - Multiple-shelled hollow microspheres integrated by ZnO nanodots as UV photodetectors for use in space with omnidirectional supersensitivity
AU - Lien, Der-Hsien
AU - He, Jr-Hau
AU - Dong, Zhenghong
AU - Wang, Dan
PY - 2013/5
Y1 - 2013/5
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/84887798298
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84887798298&origin=recordpage
U2 - 10.1364/n3.2013.nsa4a.4
DO - 10.1364/n3.2013.nsa4a.4
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 978-1-55752-976-3
T3 - Nanophotonics, Nanoelectronics and Nanosensor, N3
BT - International Photonics and Optoelectronics Meetings (POEM)
PB - OSA publishing
T2 - Nanophotonics, Nanoelectronics and Nanosensor, N3 2013
Y2 - 25 May 2013 through 26 May 2013
ER -