Fabrication and characterization of perovskite solar cells with ZnGa2O4 mixed TiO2 photoelectrode

被引:5
作者
Lee, Haram [1 ]
Bark, Chung Wung [1 ]
Choi, Hyung Wook [1 ]
机构
[1] Gachon Univ, Dept Elect Engn, 1342 Seongnam Daero, Seongnam Si 13120, Gyeonggi Do, South Korea
基金
新加坡国家研究基金会;
关键词
UV-LIGHT STABILITY; THIN-FILM; LOW-TEMPERATURE; INTERFACE MODIFICATION; SCAFFOLD LAYERS; PERFORMANCE; EFFICIENCY;
D O I
10.7567/1347-4065/ab1478
中图分类号
O59 [应用物理学];
学科分类号
摘要
Perovskite solar cells are easily decomposed by ultraviolet rays. In order to limit the function of TiO2 as a photocatalyst, ZnGa2O4 nanoparticles were mixed into a mesoporous TiO2 layer. The bandgap of the mixed layer increased by 0.1 eV and the efficiency of perovskite solar cell increased by 0.5%. However, it acts as a resistive element and lowers the current. Since ZnGa2O4 emits absorbed ultraviolet rays in blue, a thin film is additionally formed on the glass substrate to convert ultraviolet rays into electric current in a perovskite solar cell. When an ultraviolet ray is irradiated, an additional current of 100 mu A cm(-2) can be obtained. (c) 2019 The Japan Society of Applied Physics
引用
收藏
页数:6
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