自相一致的阴离子-离子集成消除了倒置矿太阳能电池的被动化交叉声
Zhen Guan1, Zejun Wei2, Xiangyu Sun1
1Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
使用PDA (TFA) 2的新型自相一致的离子集成被动化 (SCAP) 策略有效地解决了宽带间隙矿太阳能电池的接口缺陷. 这种方法显著提高了单结和联设备的功率转换效率.
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:
- 双联太阳能电池中的宽带间隙 (WBG) 矿吸收器存在接口缺陷和能量水平不对齐.
- 现有的双离子被动器面临由于离子竞争和修改冲突的限制.
研究的目的:
- 引入一种新的自我一致的离子集成被动化 (SCAP) 策略,以克服WBG矿太阳能电池的局限性.
- 设计一个多功能被动器,PDA(TFA) 2,用于同时缺陷和场效应被动.
主要方法:
- 开发了一种SCAP策略,使用多功能被动器,PDA (TFA) 2,与双极三酸 (TFA) 离子和1,3-propanediamine (PDA) 离子.
- 酸离子使化物空缺被动,并弥合了矿/C60接口.
- PDA 阴离子诱导表面二极体并优化带对齐.
主要成果:
- 优化的1.68 eV WBG矿太阳能电池实现了23.23%的功率转换效率 (PCE) 和1.27V的开放电路电压.
- 单立体矿/联电池 (0.945厘米2) 达到32.33%的PCE (31.47%稳定) 在1.992V的开放电路电压下.
结论:
- 该SCAP战略有效地消除了竞争,并加强了被动化.
- 这种方法显著提高了WBG矿光伏的效率和稳定性.
- 斯卡普战略对下一代双联太阳能电池具有前景.
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