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Electrochemical Coprecipitation of Zinc and Aluminum in Aqueous Electrolytes for ZnO and AZO Coverage Deposition
International Journal of Photoenergy ( IF 2.1 ) Pub Date : 2019-05-07 , DOI: 10.1155/2019/6808347
Natalia A. Martynova 1 , Viktor N. Svishchev 1 , Leonid S. Lepnev 2 , Shakhnozabonu R. Alieva 1 , Elena G. Chertorylskaya 3 , Mikhail E. Vishnevskiy 3 , Alexey D. Bozhko 4 , Anastasia V. Grigorieva 1
Affiliation  

The aim of this study is to examine the technological challenge of the electrochemical formation of zinc oxide and Al-doped ZnO films (ZnO:Al, AZO) as transparent conductive oxide coatings with complex architectures for solar cell photoanode materials. A cathodic electrodeposition of AZO was performed using aqueous nitrate electrolytes at 25°C. A significant positive deviation in aluminum percentage in the films was demonstrated by the LAES, EDX, and XPS methods, which originates from aluminum hydroxide sedimentation. The photoluminescent characteristics of the ZnO films reveal low band intensities related to intrinsic defects, while the samples with 1 at.% of aluminum show a strong and wide PL band at and increase in conductivity.

中文翻译:

用于 ZnO 和 AZO 覆盖沉积的水电解质中锌和铝的电化学共沉淀

本研究的目的是检查电化学形成氧化锌和掺铝 ZnO 薄膜(ZnO:Al,AZO)作为具有复杂结构的太阳能电池光电阳极材料的透明导电氧化物涂层的技术挑战。AZO 的阴极电沉积使用硝酸盐水溶液在 25°C 下进行。LAES、EDX 和 XPS 方法证明了薄膜中铝百分比的显着正偏差,这源于氢氧化铝沉淀。ZnO 薄膜的光致发光特性显示出与本征缺陷相关的低能带强度,而含有 1 at.% 铝的样品显示出强而宽的 PL 带,并且电导率增加。
更新日期:2019-05-07
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