Enhanced photoresponse in ZnO nanorod array/p-GaN self-powered ultraviolet photodetectors via coupling with CuO nanostructures

被引：26
作者：
Fu, Qiu-Ming [1 ,2 ]
Yao, Zhi-Chao [1 ,2 ]
Peng, Ji-Liang [1 ,2 ]
Zhao, Hong-Yang [1 ,2 ]
Ma, Zhi-Bin [1 ,2 ,4 ]
Tao, Hong [1 ,2 ]
Tu, Ya-Fang [3 ]
Zhou, Di [3 ]
Tian, Yu [3 ]
机构：
[1] Wuhan Inst Technol, Hubei Key Lab Plasma Chem & Adv Mat, Wuhan 430205, Peoples R China
[2] Wuhan Inst Technol, Sch Mat Sci & Engn, Wuhan 430205, Peoples R China
[3] Jianghan Univ, Dept Phys, Wuhan 430056, Peoples R China
[4] Huanggang Normal Univ, Huanggang 436100, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2020年 / 7卷 / 01期
基金：
中国国家自然科学基金;
关键词：
self-powered; ultraviolet photodetector; CuO nanostructures; ZnO nanorods; HIGH-PERFORMANCE; NANOWIRES;
D O I：
10.1088/2053-1591/ab66ab
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO nanorod arrays (ZnO NRAs) coupled with coral-like CuO nanostructures (CuO CLNs) were prepared by low-temperature hydrothermal method. Self-powered ultraviolet (UV) photodetectors (PDs) based on ZnO NRAs/CuO CLNs/p-GaN heterostructure were fabricated via a direct-contact method. Under UV illumination (1.46 mW cm(-2)), the ratios of photocurrent to dark current (I-photo/I-dark), photo-responsivity and specific detectivity for the ZnO NRAs/CuO CLNs/p-GaN heterojunction self-powered PD were estimated to be 1143, 1.44 mA W-1 and 5.9 x 10(10) cm H z (1 /2)/W at 0 V, which were about similar to 187, similar to 104 and similar to 153 times greater than those of the ZnO NRAs/p-GaN self-powered PD, respectively. Moreover, the PD displayed faster response time, excellent stability and repeatability by coupling with CuO CLNs. The mechanism of the enhanced photoresponse performance was discussed through the energy band diagram.
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页数：9
相关论文
共 27 条
[1]   Zinc oxide ultraviolet photodetectors: rapid progress from conventional to self-powered photodetectors [J].
Boruah, Buddha Deka .
NANOSCALE ADVANCES, 2019, 1 (06) :2059-2085
[2]   Doping controlled pyro-phototronic effect in self-powered zinc oxide photodetector for enhancement of photoresponse [J].
Boruah, Buddha Deka ;
Majji, Shanmukh Naidu ;
Nandi, Sukanta ;
Misra, Abha .
NANOSCALE, 2018, 10 (07) :3451-3459
[3]   Surface photo-charge effect in doped-ZnO nanorods for high-performance self-powered ultraviolet photodetectors [J].
Boruah, Buddha Deka ;
Majji, Shanmukh Naidu ;
Misra, Abha .
NANOSCALE, 2017, 9 (13) :4536-4543
[4]   Energy-Efficient Hydrogenated Zinc Oxide Nanoflakes for High-Performance Self-Powered Ultraviolet Photodetector [J].
Boruah, Buddha Deka ;
Misra, Abha .
ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (28) :18182-18188
[5]   ZnO/CuCrO2 Core-Shell Nanowire Heterostructures for Self-Powered UV Photodetectors with Fast Response [J].
Cossuet, Thomas ;
Resende, Joao ;
Rapenne, Laetitia ;
Chaix-Pluchery, Odette ;
Jimenez, Carmen ;
Renou, Gilles ;
Pearson, Andrew J. ;
Hoye, Robert L. Z. ;
Blanc-Pelissier, Daniele ;
Ngoc Duy Nguyen ;
Appert, Estelle ;
Munoz-Rojas, David ;
Consonni, Vincent ;
Deschanvres, Jean-Luc .
ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (43)
[6]   Self-powered ultraviolet photodetector based on ZnO nanorod arrays decorated with sea anemone-like CuO nanostructures [J].
Fu, Qiu-Ming ;
He, Ding-Chao ;
Yao, Zhi-Chao ;
Peng, Ji-Liang ;
Zhao, Hong-Yang ;
Tao, Hong ;
Chen, Zhe ;
Tu, Ya-Fang ;
Tian, Yu ;
Zhou, Di ;
Zheng, Guang ;
Ma, Zhi-Bin .
MATERIALS LETTERS, 2018, 222 :74-77
[7]   Blue/green electroluminescence from a ZnO nanorods/p-GaN heteroj unction light emitting diode under different reverse bias [J].
Fu, Qiu-Ming ;
Cao, Wei ;
Li, Guo-Wei ;
Lin, Zhi-Dong ;
Chen, Zhe ;
Xu, Chuan-Bo ;
Tu, Ya-Fang ;
Ma, Zhi-Bin .
APPLIED SURFACE SCIENCE, 2014, 293 :225-228
[8]   Physical Properties of Annealed ZnO Nanowire/CuSCN Heterojunctions for Self-Powered UV Photodetectors [J].
Garnier, Jerome ;
Parize, Romain ;
Appert, Estelle ;
Chaix-Pluchery, Odette ;
Kaminski-Cachopo, Anne ;
Consonni, Vincent .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (10) :5820-5829
[9]   Effect of temperature-dependent phase transformation on UV detection properties of zinc sulfide nanocrystals [J].
Hajimazdarani, Mandi ;
Naderi, Nima ;
Yarmand, Benyamin .
MATERIALS RESEARCH EXPRESS, 2019, 6 (08)
[10]   Facile synthesis and photocatalytic activity of ZnO/zinc titanate core-shell nanorod arrays [J].
He, Ding-Chao ;
Fu, Qiu-Ming ;
Ma, Zhi-Bin ;
Zhao, Hong-Yang ;
Tu, Ya-Fang ;
Tian, Yu ;
Zhou, Di ;
Zheng, Guang ;
Lu, Hong-Bing .
MATERIALS RESEARCH EXPRESS, 2018, 5 (02)
123