CuO Nanosheets for Use in Photoelectrochemical Photodetectors

被引:20
作者
Gao, Qiyue [1 ]
Jin, Zehao [1 ]
Qu, Lihang [1 ]
Shao, Zhitao [1 ]
Liu, Xin [1 ]
Zhang, Yunxiao [2 ]
Fu, Zhendong [2 ]
Huang, Yuewu [1 ,3 ]
Wang, Lili [1 ]
Feng, Wei [1 ]
机构
[1] Northeast Forestry Univ, Coll Chem Chem Engn & Resource Utilizat, Harbin 150040, Peoples R China
[2] Tianjin Jinhang Tech Phys Inst, Tianjin 300308, Peoples R China
[3] Univ Sci & Technol, Coll Mat Sci & Chem Engn, Harbin 150080, Peoples R China
基金
中国博士后科学基金;
关键词
CuO nanosheets; photoelectrochemical; photodetectors; two-dimensional materials; metal - organic framework; PERFORMANCE;
D O I
10.1021/acsanm.2c05270
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Metal oxide semiconductors have attracted growing attention due to their excellent electrical and optical properties, low-cost fabrication, and good stability, which grant them great band photoelectrochemical (PEC)-type PDs based on metal oxide semiconductors are deficient. In this work, we synthesized twodimensional (2D) CuO nanosheets (NSs) by annealing Cu-based metal-organic frameworks (Cu-MOFs) and first demonstrated broadband PEC PDs based on 2D CuO NSs. The thicknesses of 2D CuO NSs are 2-6 nm. 2D CuO PEC PDs show a broadband photoresponse from 365 to 850 nm with a responsivity of 2.7 mA/W and a response time of 60/400 ms, which surpass most 2D material-based PEC PDs. Moreover, CuO NSs PEC PDs exhibit outstanding multicycle stability and long-term stability for 1-month storage with negligible decay, exceeding all recently reported 2D material-based PEC PDs. These results endow 2D CuO NSs with great potential in underwater photodetection.
引用
收藏
页码:784 / 791
页数:8
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