添加剂工程在抗溶剂中,以改善矿/电荷传输层接口,以实现高效的-锡合金矿太阳能电池
Ting Zhang1, Feng Qian1, Yahui Zhai1
1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
ACS applied materials & interfaces
|February 21, 2024
概括
研究人员通过添加甲 (p-FPEAI) 来改进-锡 (Pb-Sn) 合金矿太阳能电池 (PSC). 这提高了功率转换效率 (PCE) 和稳定性,达到20.14%的PCE,并在一个月后保持92%的效率.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 太阳能光伏发电是如何实现的
背景情况:
- -锡 (Pb-Sn) 合金矿太阳能电池 (PSC) 是有前途的,但在功率转换效率 (PCE) 方面落后于以为基础的同行.
- 较高的开通电路电压 (Voc) 损失和较低的填充因子 (FFs) 是Pb-Sn PSC的关键限制.
研究的目的:
- 提高Pb-Sn合金PSC的性能和稳定性.
- 在薄膜结晶过程中使用甲酸 (p-FPEAI) 调查界面改善.
主要方法:
- 在矿膜生长过程中将甲酸 (p-FPEAI) 溶液加入乙烯酸乙酸 (EA) 中.
- 分析矿结晶,薄膜生长动态和应变放松.
- 设备制造和性能表征,包括效率,Voc,FF和稳定性测试.
主要成果:
- 在0.84V的开放电路电压 (Voc) 中,获得了20.14%的认证功率转换效率 (PCE).
- 显著改善了设备的稳定性,在气氛中一个月后保持了92%的初始效率.
- 通过p-FPEAI界面修改减少了缺陷密度和非辐射重组损失.
结论:
- 甲 (p-FPEAI) 有效地使Pb-Sn PSC中的接口被动,减少缺陷和重组.
- 该战略为制造高效和稳定的Pb-Sn合金PSC提供了一种简单的方法,无需额外的前体添加剂.
- 像p-FPEAI这样的大型酸作为有效的抗溶剂,为优化矿太阳能电池性能提供了洞察力.
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