标题：Morphology Control Enables Efficient Ternary Organic Solar Cells
作者：Xie, Yuanpeng; Yang, Fan; Li, Yuxiang; Uddin, Mohammad Afsar; Bi, Pengqing; Fan, Bingbing; Cai, Yunhao; Hao, Xiaotao; Woo, Han Young; 更多Xie, Yuanpeng; Yang, Fan; Li, Yuxiang; Uddin, Mohammad Afsar; Bi, Pengqing; Fan, Bingbing; Cai, Yunhao; Hao, Xiaotao; Woo, Han Young; Li, Weiwei; Liu, Feng; Sun, Yanming 收起 作者机构：[Xie, Yuanpeng; Fan, Bingbing; Cai, Yunhao; Sun, Yanming] Beihang Univ, Sch Chem, Beijing 100191, Peoples R China.; [Yang, Fan; Li, Weiwei] Chinese 更多[Xie, Yuanpeng; Fan, Bingbing; Cai, Yunhao; Sun, Yanming] Beihang Univ, Sch Chem, Beijing 100191, Peoples R China.; [Yang, Fan; Li, Weiwei] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China.; [Li, Yuxiang; Uddin, Mohammad Afsar; Woo, Han Young] Korea Univ, Dept Chem, Coll Sci, Seoul 136713, South Korea.; [Bi, Pengqing; Hao, Xiaotao] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.; [Liu, Feng] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China.; [Liu, Feng] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China. 收起 通讯作者：Sun, YM;Sun, Yanming
通讯作者地址：[Sun, YM]Beihang Univ, Sch Chem, Beijing 100191, Peoples R China.
来源：ADVANCED MATERIALS
出版年：2018
卷：30
期：38
DOI：10.1002/adma.201803045
关键词：ICBA; morphology; nonfullerene acceptor; organic solar cells; ternary; structure
摘要：Ternary organic solar cells are promising alternatives to the binary counterpart due to their potential in achieving high performance. Although a growing number of ternary organic solar cells are recently reported, less effort is devoted to morphology control. Here, ternary organic solar cells are fabricated using a wide-bandgap polymer PBT1-C as the donor, a crystalline fused-ring electron acceptor ITIC-2Cl, and an amorphous fullerene derivative indene-C-60 bisadduct (ICBA) as the acceptor. It is found that ICBA can disturb pi-pi interactions of the crystalline ITIC-2Cl molecules in ternary blends and then help to form more uniform morphology. As a result, incorporation of 20% ICBA in the PBT1-C:ITIC-2Cl blend enables efficient charge dissociation, negligible bimolecular recombination, and balanced charge carrier mobilities. An impressive power conversion efficiency (PCE) of 13.4%, with a high fill factor (FF) of 76.8%, is eventually achieved, which represents one of the highest PCEs reported so far for organic solar cells. The results manifest that the adoption of amorphous fullerene acceptor is an effective approach to optimizing the ternary blend morphology and thereby increases the solar cell performance.
收录类别：EI;SCOPUS;SCIE
WOS核心被引频次：3
Scopus被引频次：4
资源类型：期刊论文
原文链接：https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052367305&doi=10.1002%2fadma.201803045&partnerID=40&md5=6ba1efecd904e8e471d6f6f0bd741f45
