Current Situation and Development Trend of Transparent Conductive Oxide Films on Silicon Heterojunction Solar Cells
XIA Peng1,2, FU Ping1,2, HUANG Jinhua2, LI Jia2,*, SONG Weijie2
1 School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China 2 Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China
Abstract: Silicon heterojunction (SHJ) solar cells are an important part of the current photovoltaic industry, and they have attracted wide spread attention because of their high open-circuit voltage (Voc). The optical and electrical properties of transparent conductive oxide (TCO) films in SHJ solar cells affect the short-circuit current (Jsc) and filling factor (FF), respectively, and the variation of Jsc and FF will further affect the conversion efficiency of the cells. Therefore, the performance of the TCO film layer limits the long-term development of SHJ solar cells. In recent years, the development of TCO films in SHJ cells has mainly focused on improving the performance of doped In2O3 systems and doped ZnO systems. In this paper, we firstly describe the different structures of SHJ solar cells, followed by the optoelectronic properties, namely, transmittance, band gap, sheet resistance, carrier concentration, mobility, and work function, of transparent conductive oxide films. The effect of contact properties with each layer on the performance of the cell is then summarized, the application and research status of various transparent conductive oxide films in SHJ solar cells are introduced, and the prospects for their future development trends are reviewed.
夏鹏, 傅萍, 黄金华, 李佳, 宋伟杰. 硅异质结太阳能电池用透明导电氧化物薄膜的研究现状及发展趋势[J]. 材料导报, 2023, 37(9): 22090082-9.
XIA Peng, FU Ping, HUANG Jinhua, LI Jia, SONG Weijie. Current Situation and Development Trend of Transparent Conductive Oxide Films on Silicon Heterojunction Solar Cells. Materials Reports, 2023, 37(9): 22090082-9.
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