向使用酸水凝添加剂的防水,可调节的矿吸收器
Tom Flavell1,2, Dawei Zhao1,3, Fahad A Aljuaid1,3
1Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.
概括
基增强甲基酸 (MAPI) 矿的稳定性,通过使缺陷无源化,改善光学性能,提高功率转换效率. 这种类添加剂在潮湿条件下显著提高了材料的寿命.
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.
- 纳米技术纳米技术
背景情况:
- 有机金属化物矿 (OHPs) 对太阳能电池具有前景,但其稳定性较差,光学性能有限.
- 水凝,特别是石化衍生聚合物,正在作为添加剂来提高OHP性能和耐用性.
- 矿中的缺陷点作为电荷重组中心,降低了效率和稳定性.
研究的目的:
- 调查基凝在化缺陷部位和增强甲基酸 (MAPI) 稳定性的作用.
- 评估基凝结合对MAPI光学特性,晶体大小和表面石化学的影响.
- 在不同的环境条件下,评估基于MAPI的设备的性能和稳定性,在不同的环境条件下使用不同的酸凝度.
主要方法:
- 使用常规的一步方法制造具有不同酸凝度的MAPI薄膜.
- 在控制真空和近环境水蒸气压力下的X射线光电子光谱 (XPS) 分析表面化学和降解.
- 光学测量以确定缺陷密度和带隙,以及制造设备的功率转换效率 (PCE) 测量.
主要成果:
- 酸水凝的结合减少了缺陷部位,从而改善了光学性能和更大的光学带隙,与量子尺寸效应一致.
- XPS证实了MAPI结晶体的封装,并证明了真空中热降解的减少以及改善了在水蒸气下对甲基损失的稳定性.
- 具有3%重量百分比负荷的设备达到最大PCE的16.6%,并在480小时后保持其初始效率的81%,明显优于控制设备.
结论:
- 酸水凝是有效的添加剂,可以使缺陷被动化,并提高MAPI矿的稳定性和性能.
- 该研究表明,通过生物衍生材料的整合,改善矿太阳能电池的运行寿命的可行策略.
- 优化载荷为高效和耐用的矿太阳能电池技术提供了一条途径.
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