以隧穿氧化层钝化接触（TOPCon）太阳电池为研究对象,通过实验研究的方法,对TOPCon太阳电池的亚稳态效应及紫外（UV）辐照影响进行实验验证。研究结果表明：TOPCon太阳电池存在亚稳态效应,紫外辐照对太阳电池的影响存在先上升后下降的变化。在紫外预处理约1 s后电池平均光电转换效率（PCE）提升0.07%,开路电压（Voc）提升0.89 mV,填充因子（FF）提升0.15%,而长时间的辐照则引起太阳电池钝化效果的恶化,最终降低PCE。该文首次发现,对电池进行短时间紫外辐照处理可以提升其效率,为开发高效低成本TOPCon太阳电池奠定了重要基础。
Abstract
This study investigates the metastable effect and ultraviolet （UV） irradiation influence on tunnel oxide passivated contact （TOPCon） solar cells through experimental methods. The results demonstrate that TOPCon solar cells exhibit a metastable effect, and the impact of UV irradiation on the cells follows a trend of initial enhancement followed by degradation. After approximately 1 s of UV pretreatment, the average power conversion efficiency （PCE） of the cells increases by 0.07%, accompanied by a 0.89 mV improvement in open-circuit voltage （Voc） and a 0.15% rise in fill factor （FF）. However, prolonged UV irradiation degrades the passivation effectiveness, ultimately reducing the PCE. For the first time, this paper finds that short-time UV irradiation treatment on the cell can improve its efficiency, which lays an important foundation for the development of high-efficiency and low-cost TOPCon solar cells.
关键词
太阳电池 /
亚稳态效应 /
紫外辐照 /
光电转换效率 /
高效低成本 /
TOPCon
Key words
solar cells /
metastable effect /
UV irradiation /
power conversion efficiency /
high-efficiency and low-cost /
TOPCon
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基金
四川省科学技术厅区域创新合作项目（2025YFHZ0332）; 宜宾市引进高层次人才项目（2024YG05）
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