Single-Component Non-halogen Solvent-Processed High-Performance Organic Solar Cell Module with Efficiency over 14%
Single-Component Non-halogen Solvent-Processed High-Performance Organic Solar Cell Module with Efficiency over 14%
复制标题
单组分%20无卤%20溶剂处理%20高性能%20有机%20太阳能%20电池%20模块%20with%20效率%20over%2014%
DOI：
10.1016/j.joule.2020.07.028
复制
发表时间：
2020-09-16
期刊：
影响因子：
39.8
通讯作者：
Huang, Fei
中科院分区：
文献类型：
--
作者：
Dong, Sheng;Jia, Tao;Huang, Fei
本工作设计了一种非富勒烯受体DTY 6，应用于有机太阳能电池（OSC）组件器件。当与供体PM6共混时，DTY6基OSC表现出优异的性能，当使用无卤溶剂邻二甲苯时，其功率转换效率（PCE）超过16%。相比之下，当用邻二甲苯处理时，基于Y6的OSC显示出差的器件性能（PCE < 11%）。详细的研究表明，由于Y6的过度聚集，在Y6基共混膜中出现了极大的畴，导致Y6到PM6的空穴传输效率低下，非辐射复合增强。与此相反，基于DTY 6的薄膜显示出更合理的畴尺寸，从而确保了从DTY 6到PM 6的有效空穴传输和低的非辐射复合。基于这些结果，通过刮涂制造基于PM6：DTY 6的无卤素溶剂邻二甲苯处理的大面积（活性层面积18cm（2））不透明和半透明模块器件，并且获得14.4%和11.6%的突出PCE。
In this work, a non-fullerene acceptor DTY6 is designed to apply in organic solar cell (OSC) module devices. When blended with donor PM6, the DTY6-based OSCs exhibit excellent performance with power conversion efficiency (PCE) over 16% when using non-halogen solvent o-xylene. In contrast, the Y6-based OSCs show poor device performance (PCE < 11%) when processed with o-xylene. The detailed studies reveal that extremely large domains appear in the Y6-based blend film because of the excessive aggregation of Y6, which results in the lowly efficient hole transfer from Y6 to PM6 and enhanced non- radiative recombination. On the contrary, the DTY6-based film shows a more reasonable domain size, thus ensuring the efficient hole transfer from DTY6 to PM6 and low non-radiative recombination. Based on these results, non-halogen solvent o-xylene-processed large- area (active layer area 18 cm(2)) opaque and semi-transparent module devices based on PM6: DTY6 are fabricated by blade coating, and outstanding PCEs of 14.4% and 11.6% are obtained.