Crystalline Cooperativity of Donor and Acceptor Segments in Double-Cable Conjugated Polymers toward Efficient Single-Component Organic Solar Cells

被引：64

作者：

Li, Cheng ^{[1
,2
,3
]}

Wu, Xianxin ^{[4
]}

Sui, Xinyu ^{[4
]}

Wu, Hongbo ^{[5
]}

Wang, Chao ^{[6
]}

Feng, Guitao ^{[3
]}

Wu, Yonggang ^{[6
]}

Liu, Feng ^{[7
,8
]}

Liu, Xinfeng ^{[4
]}

Tang, Zheng ^{[5
]}

Li, Weiwei ^{[1
,2
,3
]}

机构：

[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

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

[4] Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, Div Nanophoton, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China

[5] Donghua Univ, Coll Mat Sci & Engn, Ctr Adv Low Dimens Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[6] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China

[7] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai, Peoples R China

[8] Shanghai Jiao Tong Univ, CICIFSA, Shanghai, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 43期

关键词：

crystalline cooperativity; double-cable conjugated polymers; nanophase separation; perylene bisimide; single-component organic solar cells; PHASE-SEPARATION; FULLERENE; MORPHOLOGY; POLYTHIOPHENE;

D O I：

10.1002/anie.201910489

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The crystalline cooperativity of the donor and acceptor segment in double-cable conjugated polymers plays an important role in the nanophase separation and photovoltaic performance in single-component organic solar cells (SCOSCs). Two double-cable conjugated polymers with the same conjugated backbone and perylene bisimide (PBI) side units were designed in which PBIs were positioned symmetrically and perpendicularly (P1) and asymmetrically and slantingly (P2) along the conjugated backbones. After thermal annealing, both conjugated backbones and PBI side units in P1 tend to form ordered nanostructures, while PBI side units in P2 dominated the crystallization and hamper the crystallization of conjugated backbones. P1 showed good crystalline cooperativity between conjugated backbones and PBI side units, resulting in improved power conversion efficiencies (PCEs) up to 3.43 % in SCOSCs, while P2 with poor crystalline cooperativity exhibited PCEs below 2.42 %.

引用

页码：15532 / 15540

页数：9

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