Preparation and Photoelectric Properties of Aluminum-Molybdenum Co-doped Zinc Oxide Powders

被引：0
|
作者：
Wang N. [1 ]
Li J. [1 ]
Liu W. [1 ,2 ]
Li W. [1 ]
Zhang Y. [1 ]
Lei J. [1 ]
Xu L. [3 ]
机构：
[1] School of Material Science and Engineering, Henan University of Science and Technology, Luoyang
[2] National Joint Collaborative Innovation Center for Nonferrous Metal New Materials and Advanced Processing Technology, Luoyang
[3] National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Luoyang
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Al and Mo co-doping; Band gap width; Hydrothermal method; Nanometer zinc oxide; Photoluminescence; Resistivity;
D O I：
10.11896/cldb.20090212
中图分类号：
学科分类号：
摘要：
Aluminum (Al) doped, Al and molybdenum (Mo) co-doped zinc oxide (AZO, AZMO) nanometer powders were prepared via hydrothermal method. The effects of single Al doping and Al-Mo co-doping on the structure, morphology and photoelectric properties of AZO, AZMO powders were cha-racterized and analyzed by using X-ray diffractometer (XRD), scanning electron microscope (SEM), high resolution transmission electron microscope (TEM), fluorescence spectrophotometer (PL), ultraviolet spectrophotometer, TG-DTA differential thermal analysis, laser particle size analyzer, and four-probe resistance tester. The results show that both of AZO and AZMO nanometer powders are hexaploid wurtzite structure with good crystallinity. The doping concentration of Al and Mo has an impact on the morphology, crystal structure and photoelectric pro-perties of nano-sized zinc oxide powder. As the doping concentration increases, the degree of crystallinity decreases, and the grain size decreases first and then increases. Photoelectric performance rises first and then drops with the increase of doping concentration. The appropriate co-doping concentration of Al and Mo can achieve the optimal match of band gap width and resistivity as well as the improvement of the near ultraviolet and blue luminescence properties. When the ration of the doping concentration for m(Al):m(Mo) is 1:3, the best comprehensive photoelectric properties of nanometer AZMO powders can be obtained with the forbidden band width of 3.392 eV and the resistivity of 20.3 Ω•m. The ultraviolet luminescence peak intensity is the highest and appears blue shift. © 2022, Materials Review Magazine. All right reserved.
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