Widening UV?Vis absorption band by Cu doped ZnO and ZnO/CuO composite

被引：28
|
作者：
Morales-Mendoza, J. E. [1 ]
Paraguay-Delgado, F. [1 ]
机构：
[1] Ctr Invest Mat Avanzados SC CIMAV, Dept Fis Mat, Miguel de Cervantes 120, Chihuahua 31136, Chih, Mexico
来源：
MATERIALS LETTERS | 2021年 / 291卷
关键词：
ZnO; 2D morphology; Cu doped ZnO; CuO; Composite; Visible absorption; NANOPARTICLES;
D O I：
10.1016/j.matlet.2021.129494
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO, Cu doped ZnO, and CuO were synthesized by solvothermal method. Pure ZnO and CuO show twodimensional (2D) particles with flake-like shape morphology and well-defined crystalline phases. The Cu incorporation slightly modifies the ZnO particle shape and size for low dopant. However, ZnO/CuO composite presents the co-existing morphologies with flake-like and small-rods shapes. The visible light absorption increases, directly proportional to the Cu content. However, ZnO/CuO composite shows wide ultraviolet-visible absorption between 200 and 1000 nm. The bandgap energy determined was 3.22 and 1.45 eV for ZnO and CuO, respectively. (c) 2021 Elsevier B.V. All rights reserved.
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页数：4
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