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单立体矿/双联太阳能电池,通过增强孔提取效率高于29%

Amran Al-Ashouri¹, Eike Köhnen¹, Bor Li¹

¹Young Investigator Group Perovskite Tandem Solar Cells, Helmholtz-Zentrum Berlin, 12489 Berlin, Germany.

Science (New York, N.Y.)

|December 11, 2020

概括

研究人员使用新型孔选择层开发了一种高效率29.15%的矿/合太阳能电池. 这种进步提高了稳定性和电力转换,

科学领域:

材料科学
可再生能源
太阳能发电

背景情况:

结合矿和的双联太阳能电池提供了超越单环节效率限制的途径.
金属化物矿对于开发先进的光伏技术至关重要.

研究的目的:

报告一个具有高认证功率转换效率的单质矿/合式太阳能电池.
调查新型孔选择层在提高设备性能和稳定性的作用.

主要方法:

一个单一的矿/太阳能电池的制造.
使用自组装的甲基替代碳素单层作为孔选择层.
设备性能的表征,包括功率转换效率,开通电路电压和充电因子.

主要成果:

获得了29.15%的功率转换效率.
在照明下证明矿吸收器的相位稳定性.
观察到加速的孔提取和最小的非辐射重组.
达到了1.92伏的双联开路电压和高达84%的单接头充电系数.

结论:

这种新型的孔选择性层是实现矿/双重太阳能电池高效率和稳定的关键.
开发的双重太阳能电池显示出有前途的运行稳定性,在空气中无封装300小时后保持95%的效率.

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