New Quinoxaline-Containing Monomers for Narrow-Bandgap Polymers

被引：2

作者：

Keshtov, M. L. ^{[1
]}

Kuklin, S. A. ^{[1
]}

Konstantinov, I. O. ^{[1
]}

Godovskii, D. Yu. ^{[1
]}

Zou, Y. ^{[3
]}

Ostapov, I. E. ^{[2
]}

Makhaeva, E. E. ^{[2
]}

Khokhlov, A. R. ^{[1
]}

机构：

[1] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[3] Cent S Univ, Changsha, Hunan, Peoples R China

来源：

DOKLADY CHEMISTRY | 2018年 / 482卷

基金：

俄罗斯基础研究基金会;

关键词：

ORGANIC PHOTOVOLTAICS;

D O I：

10.1134/S001250081809001X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new fused quinoxaline-containing monomers-2,3-bis(9-(2-decyltetradecyl)-9H-carbazol-3-yl)dithieno[3,2-f:2'3'-h]quinoxaline (M1) and 2,5-di(nonadecan-3-yl)bis[1,3]thiazolo[4,5-a:5',4'-c]bisthieno[3,2-h:2',3'-j]phenazine (M2)-have been synthesized in high yields of 88 and 83% as promising building blocks of D-A polymers for photovoltaic applications. The optical bandgaps, found from the absorption edge, are 2.79 and 2.88 eV, respectively. The HOMO/LUMO energies of M1 and M2 are -5.83/-2.96 and -5.83/-2.98 eV, respectively. Both monomers have low-lying HOMO levels, which is favorable for a high open-circuit voltage and a high stability in air in the development of PSCs. The E-g(ec) values of monomers M1 and M2 are 2.87 and 2.85 eV and are consistent well with the optical bandgap (2.79 and 2.88 eV, respectively).

引用

页码：195 / 200

页数：6

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