A guest-assisted molecular-organization approach for >17% efficiency organic solar cells using environmentally friendly solvents

被引：359

作者：

Chen, Haiyang ^{[1
]}

Zhang, Rui ^{[2
]}

Chen, Xiaobin ^{[1
]}

Zeng, Guang ^{[1
]}

Kobera, Libor ^{[3
]}

Abbrent, Sabina ^{[3
]}

Zhang, Ben ^{[1
]}

Chen, Weijie ^{[1
]}

Xu, Guiying ^{[1
]}

Oh, Jiyeon ^{[4
]}

Kang, So-Huei ^{[4
]}

Chen, Shanshan ^{[5
]}

Yang, Changduk ^{[4
]}

Brus, Jiri ^{[3
]}

Hou, Jianhui ^{[6
]}

Gao, Feng ^{[2
]}

Li, Yaowen ^{[1
]}

Li, Yongfang ^{[1
,6
]}

机构：

[1] Soochow Univ, Lab Adv Optoelect Mat, Coll Chem Chem Engn & Mat Sci, Suzhou Key Lab Novel Semicond Optoelect Mat & Dev, Suzhou, Peoples R China

[2] Linkoping Univ, Dept Phys Chem & Biol IFM, Linkoping, Sweden

[3] Czech Acad Sci, Inst Macromol Chem, Prague, Czech Republic

[4] Ulsan Natl Inst Sci & Technol, Sch Energy & Chem Engn, Dept Energy Engn, Perovtron Res Ctr,Low Dimens Carbon Mat Ctr, Ulsan, South Korea

[5] Chongqing Univ, MOE Key Lab Low Grade Energy Utilizat Technol & S, CQU NUS Renewable Energy Mat & Devices Joint Lab, Sch Energy & Power Engn, Chongqing, Peoples R China

[6] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing, Peoples R China

来源：

NATURE ENERGY | 2021年 / 6卷 / 11期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

HIGH-PERFORMANCE; OLIGO(ETHYLENE GLYCOL); CONJUGATED POLYMERS; SIDE-CHAINS; SEMICONDUCTORS; AGGREGATION; MOBILITY; MODULE;

D O I：

10.1038/s41560-021-00923-5

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The power conversion efficiencies (PCEs) of laboratory-sized organic solar cells (OSCs), usually processed from low-boiling-point and toxic solvents, have reached high values of over 18%. However, there is usually a notable drop of the PCEs when green solvents are used, limiting practical development of OSCs. Herein, we obtain certificated PCEs over 17% in OSCs processed from a green solvent paraxylene (PX) by a guest-assisted assembly strategy, where a third component (guest) is employed to manipulate the molecular interaction of the binary blend. In addition, the high-boiling-point green solvent PX also enables us to deposit a uniform large-area module (36 cm(2)) with a high efficiency of over 14%. The strong molecular interaction between the host and guest molecules also enhances the operational stability of the devices. Our guest-assisted assembly strategy provides a unique approach to develop large-area and high-efficiency OSCs processed from green solvents, paving the way for industrial development of OSCs. Organic solar cells processed from green solvents are easier to implement in manufacturing yet their efficiency is low. Chen et al. devise a guest molecule to improve the molecular packing, enabling devices with over 17% efficiency.

引用

页码：1045 / 1053

页数：9

共 45 条

[1] In situ UV-visible absorption during spin-coating of organic semiconductors: a new probe for organic electronics and [J].