高折射率聚氨在太阳能电池上具有不同的光捕捉结构的抗反射效应
Shengxuan Wang1, Hao Cui1, Sijia Jin1
1State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Heliyon
|October 9, 2023
概括
一种新的纳米印记方法在太阳能电池上创建了定制的捕光结构,显著降低了反射率. 这种环保的方法通过减少光损耗来提高太阳能电池的效率.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 可再生能源可再生能源是可再生能源.
背景情况:
- 商业水晶太阳能电池通常使用酸蚀刻用于纹理表面,以减少光反射.
- 这种传统方法涉及危险化学品,并且对质地和尺寸的控制有限.
- 开发环保和可定制的反反射策略对于太阳能电池的发展至关重要.
研究的目的:
- 为晶太阳能电池提出和评估一种使用软纳米印迹光刻技术的新型反反射策略.
- 为了展示各种具有可调节性质的捕光结构的制造.
- 评估这些结构在广泛的光谱中的反反射性能.
主要方法:
- 使用柔软的纳米印记光刻法,在SiNx薄膜上创建纹理结构,使用高折射率聚氨.
- 用不同的模板来生成各种纳米结构,包括倒置的金字塔,蕾丝和眼图案.
- 进行了有限元模拟和实验测量以分析光反射率.
主要成果:
- 制造出来的捕光结构在可见和近红外区域表现出广泛的抗反射特性.
- 在商用被动发射器后接触 (PERC) 双面太阳能电池上,反射率从18.31%降至10%以下.
- 最佳结构在300-1200 nm之间达到8.71%的表面加权平均反射率 (Rw).
结论:
- 柔软的纳米印记光刻法为传统蚀刻提供了一个有效的,环保的替代方案,用于创建先进的反射涂层.
- 开发的捕光结构显著提高了太阳能电池的光管理,提高了整体性能.
- 这种多功能策略有可能应用于各种太阳能电池技术,包括薄膜和双重电池.
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