Alternative Thieno[3,2-b][1]benzothiophene Isoindigo Polymers for Solar Cell Applications

被引：9

作者：

Neophytou, Marios ^{[1
]}

Bryant, Daniel ^{[1
]}

Lopatin, Sergei ^{[2
]}

Chen, Hu ^{[1
]}

Hallani, Rawad K. ^{[1
]}

Cater, Lewis ^{[1
]}

McCulloch, Iain ^{[1
,3
,4
]}

Yue, Wan ^{[3
,4
,5
]}

机构：

[1] KAUST, KSC, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

[2] KAUST, Imaging & Characterizat Core Lab, Thuwal 239556900, Saudi Arabia

[3] Imperial Coll London, Dept Chem, London SW7 2AZ, England

[4] Imperial Coll London, Ctr Plast Elect, London SW7 2AZ, England

[5] Sun Yat Sen Univ, Key Lab Polymer Composite & Funct Mat, Minist Educ, Sch Mat Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2018年 / 39卷 / 14期

基金：

欧盟地平线“2020”; 中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

conjugated polymers; EELS mapping; solar cells; thieno-benzothiophene isoindigo; FIELD-EFFECT TRANSISTORS; CONJUGATED POLYMERS; OPTIMIZATION; EFFICIENCY; COPOLYMER; MOBILITY;

D O I：

10.1002/marc.201700820

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This work reports the synthesis, characterization, photophysical, and photovoltaic properties of five new thieno[3,2-b][1]benzothiophene isoindigo (TBTI)-containing low bandgap donor-acceptor conjugated polymers with a series of comonomers and different side chains. When TBTI is combined with different electron-rich moieties, even small structural variations can have significant impact on thin film morphology of the polymer:phenyl C70 butyric acid methyl ester (PCBM) blends. More importantly, high-resolution electron energy loss spectroscopy is used to investigate the phase-separated bulk heterojunction domains, which can be accurately and precisely resolved, enabling an enhanced correlation between polymer chemical structure, photovoltaic device performance, and morphology.

引用

页数：7

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