A high dielectric constant non-fullerene acceptor for efficient bulk-heterojunction organic solar cells
Xi LiuGuangzhou 510640Boming XieInstitute of Polymer Optoelectronic Materials and DevicesChunhui DuanGuangzhou 510640Zhaojing WangGuangzhou 510640Baobing FanGuangzhou 510640Kai ZhangGuangzhou 510640Baojun LinP. R. ChinaFallon J. M. Colberts5600 MB EindhovenWei MaP. R. ChinaRené A. J. Janssen5600 MB EindhovenFei HuangGuangzhou 510640Yong CaoGuangzhou 510640
2017en
ABI
Abstract
A non-fullerene acceptor with a high relative dielectric constant (<italic>ε</italic><sub>r</sub>) over 9 is developed. It offers an efficiency of 8.5%, which is the best result for organic solar cells employing high <italic>ε</italic><sub>r</sub> materials. Further research should focus on morphology optimization to make high <italic>ε</italic><sub>r</sub> practically useful in devices.
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