扩散阻断层的优化兴奋剂及其对矿光伏功能的影响
Fedros Galatopoulos1, Sapir Bitton2, Maria Tziampou1
1Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3603, Cyprus.
ACS applied electronic materials
|October 30, 2023
概括
用N-DMBI对富勒烯电子输送层进行合,使矿太阳能电池 (PSC) 的厚层成为可能. 这提高了长期稳定性,并保持了卷对卷印刷设备的高功率转换效率 (PCE).
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:
- 矿太阳能电池 (PSC) 需要强大的扩散阻断层,以提高性能和寿命.
- 像PC70BM这样的富勒烯衍生物是反向PSC中常见的电子传输层 (ETL),有助于电荷提取和被动化.
- PC70BM的有限导电性限制了缓冲层厚度,阻碍了PSC稳定性的潜在改进.
研究的目的:
- 调查N-DMBI兴奋剂对逆转PSC中厚PC70BMETL的性能和稳定性的影响.
- 为了确定平衡导电性和功率转换效率 (PCE) 的最佳兴奋剂度.
- 评估PC70BM层的长期热稳定性. 在运行中的PSC中.
主要方法:
- 使用不同度的N-DMBI杂PC70BM作为ETL的反转PSC的制造.
- 光伏参数的表征,包括功率转换效率 (PCE).
- 在60°C进行1000小时的热应力测试,以评估设备的稳定性.
- 结合实验验证与计算模拟来理解兴奋剂效应.
主要成果:
- 在使用200纳米厚的PC70BM层,用0.3%重量N-DMBI合的反转PSC中达到高PCE.
- 证明最佳的N-DMBI兴奋剂保持了优良的电子电荷提取和矿活性层被动化.
- 证实了热稳定性的显著改善,设备在60°C下1000小时后仍然保持性能.
结论:
- N-DMBI兴奋剂是一种可行的策略,可以提高PC70BMETL的导电性,从而使PSC中的扩散阻断层更厚.
- 优化的兴奋剂水平允许更厚的ETL而不损害PCE,从而提高设备稳定性.
- 开发的N-DMBI-doped PC70BM层为耐用和高效的卷对卷可打印矿太阳能电池提供了有前途的解决方案.
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