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独立的超薄晶片和太阳能电池通过边缘增强

Taojian Wu¹, Zhaolang Liu², Hao Lin^3,4

¹Institute of Solar Energy, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, China.

Nature communications

|May 7, 2024

概括

一种具有强化环 (TSRR) 结构的新型薄显著降低了制造薄晶太阳能电池的破损率. 这一创新使得高效,灵活的太阳能电池具有工业兼容性.

科学领域:

材料科学材料科学材料科学
可再生能源工程可再生能源工程
半导体物理半导体物理

背景情况:

晶体太阳能电池占据市场主导地位,但缺乏灵活性.
薄晶体太阳能电池提供了市场潜力,但由于晶圆脆性而面临高破损率.

研究的目的:

开发一种方法来制造薄,灵活的晶体太阳能电池,降低破损.
研究用于薄晶片的新型增强环结构的机械和光电性能.

主要方法:

引入了一种具有强化环 (TSRR) 结构的薄.
使用实验和模拟进行机械性能分析.
28微米太阳能电池的制造和效率测试.
光电性质模拟. 光电性质模拟.
在较大的TSRR晶圆上进行制造过程测试.

主要成果:

使用TSRR结构成功制备了独立的4.7μm,4英寸晶片.
该TSRR结构有效地共享压力,抑制28μm太阳能电池的故障率为~0%.
通过TSRR结构实现了20.33%的太阳能电池效率 (认证为20.05%).
模拟表明,TSRR结构中的最佳环宽对于高效率至关重要.
证明TSRR方法对5060μm纹理晶片的工业兼容性.

结论:

TSRR结构是克服薄晶片脆性的可行解决方案.
这种方法可以生产高效,低破损,灵活的晶体太阳能电池.
TSRR方法对先进的薄型太阳能电池的大规模工业制造充满希望.

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