High Performance All-Polymer Solar Cell via Polymer Side-Chain Engineering

被引：329

作者：

Zhou, Yan ^{[1
]}

Kurosawa, Tadanori ^{[1
]}

Ma, Wei ^{[3
]}

Guo, Yikun ^{[2
]}

Fang, Lei ^{[1
]}

Vandewal, Koen ^{[4
]}

Diao, Ying ^{[1
,5
]}

Wang, Chenggong ^{[6
]}

Yan, Qifan ^{[2
]}

Reinspach, Julia ^{[1
,5
]}

Mei, Jianguo ^{[1
]}

Appleton, Anthony Lucas ^{[1
]}

Koleilat, Ghada I. ^{[1
]}

Gao, Yongli ^{[6
]}

Mannsfeld, Stefan C. B. ^{[5
]}

Salleo, Alberto ^{[4
]}

Ade, Harald ^{[3
]}

Zhao, Dahui ^{[2
]}

Bao, Zhenan ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA

[2] Peking Univ, Coll Chem, Beijing 100871, Peoples R China

[3] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

[4] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[5] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA

[6] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

ADVANCED MATERIALS | 2014年 / 26卷 / 22期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

X-RAY SCATTERING; CONJUGATED POLYMERS; QUANTUM EFFICIENCY; ENERGY-LOSSES; ACCEPTOR; MORPHOLOGY; AGGREGATION; MISCIBILITY; COPOLYMERS; STABILITY;

D O I：

10.1002/adma.201306242

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An average PCE of 4.2% for all-polymer solar cells from 20 devices with an average J SC of 8.8 mA cm-2 are obtained with a donor-acceptor pair despite a low LUMO-LUMO energy offset of less than 0.1 eV. Incorporation of polystyrene side chains into the donor polymer is found to assist in reducing the phase separation domain length scale, and results in more than 20% enhancement of PCE. We observe a direct correlation between the short circuit current (J SC) and the length scale of BHJ phase separation, which is obtained by resonance soft X-ray scattering. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

收藏

页码：3767 / 3772

页数：6

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