High Efficiency Nonfullerene Polymer Solar Cells with Thick Active Layer and Large Area

被引：219

作者：

Guo, Bing ^{[1
]}

Li, Wanbin ^{[1
]}

Guo, Xia ^{[1
]}

Meng, Xiangyi ^{[2
]}

Ma, Wei ^{[2
]}

Zhang, Maojie ^{[1
]}

Li, Yongfang ^{[1
,3
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

[3] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

ADVANCED MATERIALS | 2017年 / 29卷 / 36期

基金：

中国国家自然科学基金;

关键词：

complementary absorption; nonfullerene; polymer solar cells; thiazolothiazole; wide bandgap; FULLERENE ELECTRON-ACCEPTORS; SMALL-MOLECULE ACCEPTOR; OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC CELLS; DONOR POLYMER; DIKETOPYRROLOPYRROLE; DESIGN; SINGLE;

D O I：

10.1002/adma.201702291

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, high-efficiency nonfullerene polymer solar cells (PSCs) are developed based on a thiazolothiazole-containing wide bandgap polymer PTZ1 as donor and a planar IDT-based narrow bandgap small molecule with four side chains (IDIC) as acceptor. Through thermal annealing treatment, a power conversion efficiency (PCE) of up to 11.5% with an open circuit voltage (V-oc) of 0.92 V, a short-circuit current density (J(sc)) of 16.4 mA cm(-2), and a fill factor of 76.2% is achieved. Furthermore, the PSCs based on PTZ1:IDIC still exhibit a relatively high PCE of 9.6% with the active layer thickness of 210 nm and a superior PCE of 10.5% with the device area of up to 0.81 cm(2). These results indicate that PTZ1 is a promising polymer donor material for highly efficient fullerene-free PSCs and large-scale devices fabrication.

引用

页数：7

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