Toward the Realization of A Practical Diketopyrrolopyrrole-Based Small Molecule for Improved Efficiency in Ternary BHJ Solar Cells

被引：42

作者：

Lee, Junghoon ^{[1
,2
]}

Yun, Myoung Hee ^{[1
,2
]}

Kim, Jonggi ^{[1
,2
]}

Kim, Jin Young ^{[1
,2
]}

Yang, Changduk ^{[1
,2
]}

机构：

[1] UNIST, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea

[2] UNIST, KIER UNIST Adv Ctr Energy, Ulsan 689798, South Korea

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2012年 / 33卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

bulk-heterojunction solar cells; dimethylphenylamine; diketopyrrolopyrrole; donor-acceptor materials; ternary systems; INTERPENETRATING NETWORK; POLYMER; POLY(3-HEXYLTHIOPHENE); MORPHOLOGY;

D O I：

10.1002/marc.201100643

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An easily accessible DPP-based small molecule (DMPA-DTDPP) has been synthesized by a simple and efficient route. The resulting molecule, when incorporated into a P3HT:PCBM-based BHJ solar cell, is found to significantly improve the efficiency. The utility of DMPA-DTDPP as an additive yields an increase in the short circuit current density (Jsc) because DMPA-DTDPP serves as an energy funnel for P3HT excitons at the P3HT:PCBM interfaces, resulting in an improved overall power conversion efficiency, compared to the P3HT:PCBM control device. Considering the trouble-free and cost effective synthesis of DMPA-DTDPP, it may prove very useful in high-performance solar cells.

引用

页码：140 / 145

页数：6

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