Narrow bandgap semiconducting polymers for solar cells with near-infrared photo response and low energy loss

被引：10

作者：

Shah, Muhammad Naeem ^{[1
]}

Zhang, Shuhua ^{[1
]}

Sun, Qian ^{[1
]}

Ullah, Fateh ^{[1
]}

Chen, Hongzheng ^{[1
]}

Li, Chang-Zhi ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, State Key Lab Silicon Mat, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

TETRAHEDRON LETTERS | 2017年 / 58卷 / 30期

基金：

中国国家自然科学基金;

关键词：

Polymer solar cell; Energy loss; Diketopyrrolopyrrole; Band gap; OPEN-CIRCUIT VOLTAGE; ELECTRON-ACCEPTORS; SMALL-MOLECULE; CONJUGATED POLYMERS; DIKETOPYRROLOPYRROLE; EFFICIENT; FULLERENE; PERFORMANCE; DONOR; HETEROJUNCTION;

D O I：

10.1016/j.tetlet.2017.06.056

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The alternating diketopyrrolopyrrole (DPP)-Quinoxaline (Qx) based conjugated polymers are synthesized and investigated as electron donors for polymer solar cells (PSCs). Through the substitution of phenyl in Qx unit at para (p) and meta (m) positions with methoxy group, the resultant DPP-pMQx and DPP-mMQx polymers possess narrow optical band gap (1.32 and 1.26 eV) with relatively low-lying highest occupied molecular orbitals. The obtained photovoltaic devices indicate that the combination of DPP with weak acceptor Qx is helpful to develop narrow bandgap polymers with near-infrared photo response and low energy loss (0.58 eV for DPP-mMQx) in PSC devices. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：2975 / 2980

页数：6

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