Solubilizing Side Chain Engineering: Efficient Strategy to Improve the Photovoltaic Performance of Novel Benzodithiophene-Based (X-DADAD)nConjugated Polymers

被引：9

作者：

Kuznetsov, Ilya E. ^{[1
]}

Nikitenko, Sergey L. ^{[1
]}

Kuznetsov, Petr M. ^{[1
]}

Dremova, Nadezhda N. ^{[1
]}

Troshin, Pavel A. ^{[1
,2
]}

Akkuratov, Alexander V. ^{[1
]}

机构：

[1] Russian Acad Sci IPCP RAS, Inst Problems Chem Phys, Acad Semenov Ave 1, Moscow 142432, Russia

[2] Skolkovo Inst Sci & Technol, Nobel St 3, Moscow 143025, Russia

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2020年 / 41卷 / 22期

基金：

俄罗斯科学基金会;

关键词：

benzodithiophene; benzothiadiazole; conjugated polymers; organic solar cells; thiophene; OPEN-CIRCUIT VOLTAGE; NON-FULLERENE ACCEPTORS; ORGANIC SOLAR-CELLS; CONJUGATED POLYMERS; LOW-BANDGAP; TTBTBTT TERPOLYMERS; RATIONAL DESIGN; RECENT PROGRESS; DONOR; COPOLYMERS;

D O I：

10.1002/marc.202000430

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Conjugated polymers represent a promising family of semiconductor materials for thin-film organic solar cells (OSCs). An efficient approach to improve the photovoltaic performance of conjugated polymers is engineering the side chains attached to the polymer backbone. This work reports the impact of different alkyl substituents on the optoelectronic properties, charge carrier mobilities, thin film morphology, and photovoltaic performance of novel (X-DADAD)(n)conjugated polymers incorporating benzo[1,2-b:4,5-b ']dithiophene moieties. It has been shown that loading conjugated polymers with appropriate alkyl side chains results in a spectacular performance improvement from 6.8% to 9% in OCSs using a model fullerene acceptor [6,6]-phenyl-C-71-butyric acid methyl ester. The obtained results feature side-chain engineering as a facile and efficient strategy for designing high-performance conjugated polymers for organic photovoltaics.

引用

页数：7

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