Improved Charge Transport and Reduced Nonradiative Energy Loss Enable Over 16% Efficiency in Ternary Polymer Solar Cells

被引：392

作者：

Yu, Runnan ^{[1
,2
]}

Yao, Huifeng ^{[1
]}

Cui, Yong ^{[1
,2
]}

Hong, Ling ^{[1
,2
]}

He, Chang ^{[1
]}

Hou, Jianhui ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Inst Chem,CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

ADVANCED MATERIALS | 2019年 / 31卷 / 36期

基金：

中国国家自然科学基金;

关键词：

nonfullerene acceptor; nonradiative energy loss; polymer solar cells; power conversion efficiency; ternary; STABILITY-COST GAP; NONFULLERENE ACCEPTORS; CONJUGATED POLYMER; ELECTRON-ACCEPTOR; FULLERENE; PHOTOVOLTAICS; MORPHOLOGY; SEPARATION; MOBILITY; STATES;

D O I：

10.1002/adma.201902302

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Recent advances in the material design and synthesis of nonfullerene acceptors (NFAs) have revealed a new landscape for polymer solar cells (PSCs) and have boosted the power conversion efficiencies (PCEs) to over 15%. Further improvements of the photovoltaic performance are a significant challenge in NFA-PSCs based on binary donor:acceptor blends. In this study, ternary PSCs are fabricated by incorporating a fullerene derivative, PC61BM, into a combination of a polymer donor (PBDB-TF) and a fused-ring NFA (Y6) and a very high PCE of 16.5% (certified as 16.2%) is recorded. Detailed studies suggest that the loading of PC61BM into the PBDB-TF:Y6 blend can not only enhance the electron mobility but also can increase the electroluminescence quantum efficiency, leading to balanced charge transport and reduced nonradiative energy losses simultaneously. This work suggests that utilizing the complementary advantages of fullerene and NFAs is a promising way to finely tune the detailed photovoltaic parameters and further improve the PCEs of PSCs.

引用

页数：8

共 60 条

[1] The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors [J].

Bakulin, Artem A. ;

Rao, Akshay ;

Pavelyev, Vlad G. ;

van Loosdrecht, Paul H. M. ;

Pshenichnikov, Maxim S. ;

Niedzialek, Dorota ;

Cornil, Jerome ;

Beljonne, David ;

Friend, Richard H. .

SCIENCE, 2012, 335 (6074) :1340-1344

[2]

Baran D, 2017, NAT MATER, V16, P363, DOI [10.1038/NMAT4797, 10.1038/nmat4797]

[3] A New Approach for Probing the Mobility and Lifetime of Photogenerated Charge Carriers in Organic Solar Cells Under Real Operating Conditions [J].

Baumann, A. ;

Lorrmann, J. ;

Rauh, D. ;

Deibel, C. ;

Dyakonov, V. .

ADVANCED MATERIALS, 2012, 24 (32) :4381-4386

[4] 11.4% Efficiency non-fullerene polymer solar cells with trialkylsilyl substituted 2D-conjugated polymer as donor [J].

Bin, Haijun ;

Gao, Liang ;

Zhang, Zhi-Guo ;

Yang, Yankang ;

Zhang, Yindong ;

Zhang, Chunfeng ;

Chen, Shanshan ;

Xue, Lingwei ;

Yang, Changduk ;

Xiao, Min ;

Li, Yongfang .

NATURE COMMUNICATIONS, 2016, 7

[5] High fabrication yield organic tandem photovoltaics combining vacuum- and solution-processed subcells with 15% efficiency [J].

Che, Xiaozhou ;

Li, Yongxi ;

Qu, Yue ;

Forrest, Stephen R. .

NATURE ENERGY, 2018, 3 (05) :422-427

[6] Surprising Effects upon Inserting Benzene Units into a Quaterthiophene-Based D-A Polymer-Improving Non-Fullerene Organic Solar Cells via Donor Polymer Design [J].

Chen, Shangshang ;

Yao, Huatong ;

Li, Zhengke ;

Awartani, Omar M. ;

Liu, Yuhang ;

Wang, Zheng ;

Yang, Guofang ;

Zhang, Jianquan ;

Ade, Harald ;

Yan, He .

ADVANCED ENERGY MATERIALS, 2017, 7 (12)

[7] Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design [J].

Cui, Yong ;

Yao, Huifeng ;

Hong, Ling ;

Zhang, Tao ;

Xu, Ye ;

Xian, Kaihu ;

Gao, Bowei ;

Qin, Jinzhao ;

Zhang, Jianqi ;

Wei, Zhixiang ;

Hou, Jianhui .

ADVANCED MATERIALS, 2019, 31 (14)

[8] Conjugated polymers containing Ba←N unit as electron acceptors for all-polymer solar cells [J].

Dou, Chuandong ;

Liu, Jun ;

Wang, Lixiang .

SCIENCE CHINA-CHEMISTRY, 2017, 60 (04) :450-459

[9] Low-Bandgap Near-IR Conjugated Polymers/Molecules for Organic Electronics [J].

Dou, Letian ;

Liu, Yongsheng ;

Hong, Ziruo ;

Li, Gang ;

Yang, Yang .

CHEMICAL REVIEWS, 2015, 115 (23) :12633-12665

[10] Achieving over 16% efficiency for single-junction organic solar cells [J].

Fan, Baobing ;

Zhang, Difei ;

Li, Meijing ;

Zhong, Wenkai ;

Zeng, Zhaomiyi ;

Ying, Lei ;

Huang, Fei ;

Cao, Yong .

SCIENCE CHINA-CHEMISTRY, 2019, 62 (06) :746-752

← 1 2 3 4 5 6 →