Synthesis of single-crystalline ZnO nanoflowers for a superhigh-sensitivity ultraviolet photodetector application

被引：15
作者：
Wu, Hao [1 ,2 ,3 ,4 ]
Yuan, Zhaolin [1 ,2 ,3 ,4 ]
Wang, Biyi [2 ]
Nie, Fengjun [5 ]
He, Jianfeng [1 ,3 ,4 ]
Wang, Xueyuan [1 ,3 ,4 ]
Liu, Lin [1 ,3 ,4 ]
机构：
[1] East China Univ Technol, Jiangxi Engn Lab Radioact Geosci & Big Data Techn, Nanchang 330013, Jiangxi, Peoples R China
[2] Sci & Technol Electroopt Informat Secur Control L, Tianjin 300308, Peoples R China
[3] East China Univ Technol, Jiangxi Engn Technol Res Ctr Nucl Geosci Data Sci, Nanchang 330013, Jiangxi, Peoples R China
[4] East China Univ Technol, Sch Software & Informat Engn, Nanchang 330013, Jiangxi, Peoples R China
[5] East China Univ Technol, Sch Earth Sci, Nanchang 330013, Jiangxi, Peoples R China
来源：
OPTICAL MATERIALS | 2021年 / 122卷
基金：
中国国家自然科学基金;
关键词：
Single-crystalline ZnO nanoflowers; Hydrothermal method; Ultraviolet photodetector; Sensitivity; OPTIMIZATION; NANORODS; EMISSION; NETWORK; GROWTH;
D O I：
10.1016/j.optmat.2021.111683
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high-performance, low-cost and simple ultraviolet photodetectors are very promising in some applications. Here, single-crystalline zinc oxide (ZnO) nanoflowers were prepared by combining a facile hydrothermal method with post-annealing treatment, we built an ultraviolet photodetector with an active area of 0.36 cm(2) using the as prepared ZnO nanoflowers. The results showed that under 365 nm light illumination with a light intensity of 77 mu W/cm(2), the sensitivity, response time, decay time, responsivity and gain of the device were 19991.3 (-0.1 V), 16.4 s, 37.6 s, 9.0 A/W (5 V) and 30.6 (5 V), respectively, indicating that a ZnO nanoflowers UV photodetector with superhigh sensitivity was achieved.
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页数：4
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