Temperature-Dependent Self-Powered Solar-Blind Photodetector Based on Ag2O/β-Ga2O3 Heterojunction

被引：23

作者：

Park, Taejun ^{[1
]}

Park, Sangbin ^{[1
]}

Park, Joon Hui ^{[2
]}

Min, Ji Young ^{[2
]}

Jung, Yusup ^{[3
]}

Kyoung, Sinsu ^{[3
]}

Kang, Tai Young ^{[3
]}

Kim, Kyunghwan ^{[1
]}

Rim, You Seung ^{[2
]}

Hong, Jeongsoo ^{[1
]}

机构：

[1] Gachon Univ, Coll IT Convergence, Dept Elect Engn, 1342 Seongnam Daero, Seongnam Si 13120, South Korea

[2] Sejong Univ, Dept Intelligent Mechatron Engn & Convergence Eng, 209 Neungdong Ro, Seoul 05006, South Korea

[3] PowerCubeSemi Inc, 686 Cheonggyesan Ro, Seongnam Si 13105, South Korea

来源：

NANOMATERIALS | 2022年 / 12卷 / 17期

关键词：

Ag2O/beta-Ga2O3; heterojunction; deep ultraviolet; photodetector; post-annealing; OXIDE THIN-FILMS; SURFACE;

D O I：

10.3390/nano12172983

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, a high-photoresponsivity self-powered deep ultraviolet (DUV) photodetector based on an Ag2O/beta-Ga2O3 heterojunction was fabricated by depositing a p-type Ag2O thin film onto an n-type beta-Ga2O3 layer. The device characteristics after post-annealing at temperatures ranging from 0 to 400 degrees C were investigated. Our DUV devices exhibited typical rectification characteristics. At a post-annealing temperature of 300 degrees C, the as-fabricated device had a low leakage current of 4.24 x 10(-11) A, ideality factor of 2.08, and a barrier height of 1.12 eV. Moreover, a high photo-responsivity of 12.87 mA/W was obtained at a 100 mu W/cm(2) light intensity at a 254 nm wavelength at zero bias voltage, the detectivity was 2.70 x 10(11) Jones, and the rise and fall time were 29.76, 46.73 ms, respectively. Based on these results, the Ag2O/beta-Ga2O3 heterojunction photodetector operates without an externally applied voltage and has high responsivity, which will help in the performance improvement of ultraviolet sensing systems.

引用

页数：16

共 65 条

[1] Characterization of Ag oxide thin films prepared by reactive RF sputtering [J].

Abe, Y ;

Hasegawa, T ;

Kawamura, M ;

Sasaki, K .

VACUUM, 2004, 76 (01) :1-6

[2] Solar blind Schottky photodiode based on an MOCVD-grown homoepitaxial β-Ga2O3 thin film [J].

Alema, Fikadu ;

Hertog, Brian ;

Mukhopadhyay, Partha ;

Zhang, Yuewei ;

Mauze, Akhil ;

Osinsky, Andrei ;

Schoenfeld, Winston V. ;

Speck, James S. ;

Vogt, Timothy .

APL MATERIALS, 2019, 7 (02)

[3] Tutorial: Reactive high power impulse magnetron sputtering (R-HiPIMS) [J].

Anders, Andre .

JOURNAL OF APPLIED PHYSICS, 2017, 121 (17)

[4] Ultrahigh Performance of Self-Powered β-Ga2O3 Thin Film Solar-Blind Photodetector Grown on Cost-Effective Si Substrate Using High-Temperature Seed Layer [J].

Arora, Kanika ;

Goel, Neeraj ;

Kumar, Mahesh ;

Kumar, Mukesh .

ACS PHOTONICS, 2018, 5 (06) :2391-2401

[5] Solar-Blind UV Photodetector Based on Atomic Layer-Deposited Cu2O and Nanomembrane β-Ga2O3 pn Oxide Heterojunction [J].

Bae, Hagyoul ;

Charnas, Adam ;

Su, Xing ;

Noh, Jinhyun ;

Si, Mengwei ;

Chung, Wonil ;

Qiu, Gang ;

Lyu, Xiao ;

Alghamdi, Sami ;

Wang, Haiyan ;

Zemlyanoy, Dmitry ;

Ye, Peide D. .

ACS OMEGA, 2019, 4 (24) :20756-20761

[6] Electrical and optical properties of reactive DC magnetron sputtered silver oxide thin films: role of oxygen [J].

Barik, UK ;

Srinivasan, S ;

Nagendra, CL ;

Subrahmanyam, A .

THIN SOLID FILMS, 2003, 429 (1-2) :129-134

[7] Top-emitting organic light-emitting devices using surface-modified Ag anode [J].

Chen, CW ;

Hsieh, PY ;

Chiang, HH ;

Lin, CL ;

Wu, HM ;

Wu, CC .

APPLIED PHYSICS LETTERS, 2003, 83 (25) :5127-5129

[8] Ultrasensitive Self-Powered Solar-Blind Deep-Ultraviolet Photodetector Based on All-Solid-State Polyaniline/MgZnO Bilayer [J].

Chen, Hongyu ;

Yu, Pingping ;

Zhang, Zhenzhong ;

Teng, Feng ;

Zheng, Lingxia ;

Hu, Kai ;

Fang, Xiaosheng .

SMALL, 2016, 12 (42) :5809-5816

[9] Self-Powered Solar-Blind Photodetector with Fast Response Based on Au/β-Ga2O3 Nanowires Array Film Schottky Junction [J].

Chen, Xing ;

Liu, Kewei ;

Zhang, Zhenzhong ;

Wang, Chunrui ;

Li, Binghui ;

Zhao, Haifeng ;

Zhao, Dongxu ;

Shen, Dezhen .

ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (06) :4185-4191

[10] Review of gallium-oxide-based solar-blind ultraviolet photodetectors [J].

Chen, Xuanhu ;

Ren, Fangfang ;

Gu, Shulin ;

Ye, Jiandong .

PHOTONICS RESEARCH, 2019, 7 (04) :381-415

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