使用白光脉冲和微波导电性的有机光伏评估的多功能方法
Akinori Saeki1, Saya Yoshikawa, Masashi Tsuji
1Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. saeki@chem.eng.osaka-u.ac.jp
Journal of the American Chemical Society
|November 15, 2012
概括
研究人员开发了一种使用时间解析微波导电性 (TRMC) 的有机光伏电池 (OPV) 快速评估技术. 这种方法可以预测光伏性能,而无需设备制造,加速材料选,以实现有效的太阳能转换.
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.
- 有机电子 有机电子
背景情况:
- 低频段间隙合聚合物对于有机光伏电池 (OPV) 来提高太阳能转换至关重要.
- 在OPV功率转换效率 (PCE) 中,通过新型材料和设备架构取得了重大进展.
- 快速选方法对于加速开发新的OPV材料和工艺至关重要.
研究的目的:
- 为批量异质连接OPV开发一种通用且快速的评估技术.
- 为了使OPV活性层材料的选能够在不需要完整的设备制造的情况下进行.
- 为了确定短暂光导度测量和光伏性能之间的相关性.
主要方法:
- 利用时间解析微波导电性 (TRMC) 与Xe闪光灯发出的微秒次的白光脉冲相结合.
- 研究了四种众所周知的低带间隔聚合物,与基酸甲基 (PCBM) 混合.
- 测量过渡光导率以提取有关电荷载体生成效率,移动性和寿命的信息.
主要成果:
- Xe-flash TRMC成功评估了OPV活性层的特性,独立于设备制造.
- 短暂光导率最大值显示出与功率转换效率与开通电路电压 (PCE/Voc) 的比率的普遍相关性.
- 这种相关性提供了一个简单的方法来预测OPV材料的光伏性能.
结论:
- 开发的Xe-flash TRMC技术为批量异质连接OPV提供了一种通用和快速的评估方法.
- 这种方法显著加快了材料选,以提高太阳能电池性能.
- 这些发现促进了有效的有机光伏技术的更快的开发周期.
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