One-pot synthesis of electron-acceptor composite enables efficient fullerene-free ternary organic solar cells

被引：35

作者：

Zhang, Jianyun ^{[1
,3
]}

Liu, Wenrui ^{[1
,3
]}

Chen, Shanshan ^{[2
]}

Xu, Shengjie ^{[1
]}

Yang, Changduk ^{[2
]}

Zhu, Xiaozhang ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] UNIST, Low Dimens Carbon Mat Ctr, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan 689798, South Korea

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2018年 / 6卷 / 45期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

NONFULLERENE ACCEPTOR; POLYMER; ENERGY; DESIGN; OPTIMIZATION;

D O I：

10.1039/c8ta08961b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An effective strategy of synthesizing an electron-acceptor composite (ZITI-m) by one-pot reaction to improve photovoltaic performance is proposed. The ZITI-m composite is synthesized by one-pot Knoevenagel reaction of ZIT-2CHO and a mixture of INCN-2F and I-a, from which asymmetrical ZITI-3F and symmetrical ZITI-4F are separated. J71:ZITI-m-based OSC shows the highest PCE of 13.65 +/- 0.13% with remarkable PCE of 13.85% than those based on J71:ZITI-3F (12.97 +/- 0.15%) and J71:ZITI-4F (13.02 +/- 0.13%) blends. The effect of acceptor ratio in the composite on OPV performance indicates that all PCEs of composite system are higher than those of the materials based on pure acceptors with a broad composition tolerance, which is ascribed to the synergistic effect of the ternary blend system.

引用

收藏

页码：22519 / 22525

页数：7

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