The effect of different chalcogenophenes in isoindigo-based conjugated copolymers on photovoltaic properties

被引：46

作者：

Jung, Eui Hyuk ^{[1
]}

Bae, Seunghwan ^{[1
]}

Yoo, Tae Woong ^{[1
]}

Jo, Won Ho ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea

来源：

POLYMER CHEMISTRY | 2014年 / 5卷 / 22期

关键词：

HETEROJUNCTION SOLAR-CELLS; THIN-FILM TRANSISTORS; LOW-BANDGAP POLYMER; HIGH-PERFORMANCE; LOW-COST; EFFICIENCY; DIKETOPYRROLOPYRROLE; POLYTELLUROPHENE; POLYSELENOPHENE; SEMICONDUCTORS;

D O I：

10.1039/c4py00791c

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New low bandgap conjugated copolymers based on isoindigo and three different chalcogenophenes (thiophene, selenophene and tellurophene) were synthesized (denoted as PIT, PISe and PITe, respectively) to investigate the effect of different chalcogenophenes on their photovoltaic properties. PISe and PITe show lower bandgaps and deeper HOMO energy levels as compared to PIT. The solar cell device based on PISe blended with PC61BM exhibits a promising PCE of 5.72% with a J(SC) of 10.21 mA cm(-2), while PITe shows the lowest PCE of 1.16% with the lowest J(SC) of 2.51 mA cm(-2) because of its coarse morphology although the field-effect hole mobility of PITe is the highest due to higher crystallinity than others.

引用

页码：6545 / 6550

页数：6

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