Diketopyrrolopyrrole-based narrow band gap donors for efficient solution-processed organic solar cells

被引：10

作者：

Bagde, Sushil S. ^{[1
]}

Park, Hanok ^{[1
]}

Yang, Seon-nam ^{[1
]}

Jin, Sung-Ho ^{[2
]}

Lee, Soo-Hyoung ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Sch Semicond & Chem Engn, Jeonju 561756, South Korea

[2] Pusan Natl Univ, Dept Chem Educ, Busan 609735, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 630卷

基金：

新加坡国家研究基金会;

关键词：

SMALL-MOLECULE; PHOTOVOLTAIC PROPERTIES; TANDEM POLYMER; DESIGN; ACCEPTOR; BENZODITHIOPHENE; DERIVATIVES;

D O I：

10.1016/j.cplett.2015.04.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study involves the development of two new small molecules comprising a diketopyrrolopyrrole (DPP) core flanked with donor units of triphenylamine (TPA-DPP-TPA) and fluorine (FL-DPP-FL) for application in bulk heterojunction (BHJ) organic solar cells (OSCs). The OSCs based on FL-DPP-FL and PC71 BM exhibited a PCE of 1.73%, compared to 1.45% for that obtained from devices of TPA-DPP-TPA. The morphological studies reveal that the enhancement in OSCs of FL-DPP-FL is mainly attributed to the improved nanoscale film morphology of the FL-DPP-FL:PC71 BM blend, which promoted the formation of smaller domains and greater donor-acceptor interpenetrated networks within the active layer. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：37 / 43

页数：7

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