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Author:

Wang, Qiang (Wang, Qiang.) | Zou, Anshan (Zou, Anshan.) | Yang, Lixue (Yang, Lixue.) | Liu, Beiyun (Liu, Beiyun.) | Zhang, Yulin (Zhang, Yulin.) | Chen, Fei (Chen, Fei.) | Wang, Jingyu (Wang, Jingyu.) | Zhang, Shunshun (Zhang, Shunshun.) | Yan, Yinzhou (Yan, Yinzhou.) (Scholars:闫胤洲) | Jiang, Yijian (Jiang, Yijian.) (Scholars:蒋毅坚)

Indexed by:

EI Scopus SCIE

Abstract:

Here we report a novel ZnO microtubular homojunction photodiode (PD) fabricated by optical vapor supersaturated precipitation (OVSP) and sputtering methods. The acceptor-rich ZnO (A-ZnO) microtube grown by OVSP possesses a great UV-visible rejection ratio of similar to 3.77 and a high external quantum yield of 1.4 x 10(3)%. The formed A-ZnO/n-ZnO homojunction UV-PD realizes an ultrafast photoresponse down to 6 ms (three orders of magnitude faster) and boosts the sensitivity by 2.6-folds with respect to the bare A-ZnO microtube. It is beneficial for weak-signal UV detection down to the threshold of 0.4 mW/cm(2) under random excitation conditions, by which the detectivity up to 6.67 x 10(12) cmHz(1/2)/W is achieved. The ZnO microtubular homojunction paves a new way for design of high-performance wide-bandgap semiconductor UV-PDs, promoting their practical applications in future. (C) 2021 Elsevier B.V. All rights reserved.

Keyword:

ZnO microtube UV photodiode Ultrafast response Wide-bandgap semiconductor Homojunction

Author Community:

  • [ 1 ] [Wang, Qiang]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 2 ] [Zou, Anshan]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 3 ] [Zhang, Yulin]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 4 ] [Chen, Fei]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 5 ] [Wang, Jingyu]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 6 ] [Zhang, Shunshun]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 7 ] [Jiang, Yijian]Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
  • [ 8 ] [Yang, Lixue]Beijing Univ Technol, Fac Mat & Mfg, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 9 ] [Yan, Yinzhou]Beijing Univ Technol, Fac Mat & Mfg, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 10 ] [Jiang, Yijian]Beijing Univ Technol, Fac Mat & Mfg, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 11 ] [Liu, Beiyun]Guangxi Univ Sci & Technol, Sch Sci, Liuzhou 545006, Peoples R China

Reprint Author's Address:

  • 闫胤洲

    [Yan, Yinzhou]Beijing Univ Technol, Fac Mat & Mfg, Inst Laser Engn, Beijing 100124, Peoples R China

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Source :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

Year: 2021

Volume: 887

6 . 2 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:116

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 13

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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