Reducing Voltage Losses in the A-DA'D-A Acceptor-Based Organic Solar Cells

被引：197

作者：

Yuan, Jun ^{[1
]}

Zhang, Huotian ^{[2
]}

Zhang, Rui ^{[2
]}

Wang, Yuming ^{[2
]}

Hou, Jianhui ^{[3
]}

Leclerc, Mario ^{[4
]}

Zhan, Xiaowei ^{[5
]}

Huang, Fei ^{[6
]}

Gao, Feng ^{[2
]}

Zou, Yingping ^{[1
]}

Li, Yongfang ^{[3
]}

机构：

[1] Cent South Univ, Coll Chem & Chem Engn, State Key Lab Powder Met, Changsha 410083, Peoples R China

[2] Linkoping Univ, IFM, Biomol & Organ Elect, S-58183 Linkoping, Sweden

[3] Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China

[4] Univ Laval, Dept Chem, Quebec City, PQ G1V 0A6, Canada

[5] Peking Univ, Dept Mat Sci & Engn, Beijing 100871, Peoples R China

[6] South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China

来源：

CHEM | 2020年 / 6卷 / 09期

基金：

瑞典研究理事会; 加拿大自然科学与工程研究理事会; 中国国家自然科学基金;

关键词：

POLYMER PHOTOVOLTAIC CELLS; OPEN-CIRCUIT VOLTAGE; CHARGE-TRANSFER; FULLERENE; EFFICIENCY; RECOMBINATION; COST; DESIGN; LIMIT;

D O I：

10.1016/j.chempr.2020.08.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Power conversion efficiencies (PCEs) of solution-processed organic solar cells (OSCs) have recently reached 17.4% (certified) for single-junction devices. Crucial to this advancement is the development of non-fullerene acceptors (NFAs) since 2015. The recent A-DA'D-A NFAs have attracted widespread attention because of their ladder-type electron-deficient-core-based central fused ring with improved transport properties and optimum energy levels. With the synergistic effect of electron-deficient-core and specific molecular geometry, the A-DA'DA molecules could achieve low voltage losses and high current generation at the same time, reaching new regimes of device physics and photophysics. This perspective will discuss the voltage losses in state-of-the-art A-DA'D-A NFA-based OSCs and propose new molecular design strategies to achieve PCEs over 20% in OSCs based on these new acceptors by further decreasing their total voltage losses.

引用

页码：2147 / 2161

页数：15

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