Chlorinated polymer solar cells simultaneously enhanced by fullerene and non-fullerene ternary strategies

Liu, Longzhu1,2,3; Chao, Pengjie2,3; Mo, Daize2,3; He, Feng2,3,4

2021-03-01

10.1016/j.jechem.2020.06.014

Journal of Energy Chemistry   影响因子和分区

2095-4956

To achieve efficient polymer solar cells (PSCs) with full utilization of the whole spectrum, the multicomponent devices are of great importance to be deeply explored, especially for their capability of one-step fabrication. However, the research about one same binary system simultaneously derivated various multi-component PSC is still very limited. Herein, we achieved the whole constructions from one binary host to different ternary systems and even the quaternary one. The ternary strategies with fullerene acceptor, PC71BM, and non-fullerene acceptor, BT6IC-BO-4Cl, as the third component, both boosted the device efficiencies of PBT4Cl-Bz: IT-4F binary system from about 9% to comparatively beyond 11%. Despite the comparable improvement of performance, there existed other similarities and differences in two ternary strategies. In detail, the isotropic carrier transport of PC71BM which largely elevated the fill factor (FF) in the corresponding devices, while the strong absorption of BT6IC-BO-4Cl enhanced the short current density (J(sc)) most. More interestingly, quaternary devices based on PBT4Cl-Bz: PC71BM: BT6IC-BO-4Cl could combine both advantages of fullerene and non-fullerene ternary strategies, further pumped the J(sc) from 16.44 to the highest level of 19.66 mA cm(2) among all devices, eventually resulted in an optimized efficiency of 11.69%. It reveals that both fullerene and non-fullerene ternary strategies have their unique feature to elevate the device performance either by efficient isotropic carrier transport or better coverage of whole sunlight spectrum and easy tunable energy levels from organic materials. The key is how to integrate the two pathways in one system and provide a more competitive solution facing high-quality PSCs. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.

Chlorination Polymer solar cell Multi-component Fullerene Non-fullerene

SCI ; EI

英语

通讯

National Natural Science Foundation of China[21733005,21975115,51773087] ; Shenzhen Fundamental Research Program["KQJSCX201803191144 42157","JCYJ20170817111214740","JCYJ20180302180238419"] ; Shenzhen Nobel Prize Scientists Laboratory Project[C17213101] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121 201002] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Shenzhen Sci-Tech Fund[KYTDPT20181011104007]

Chemistry ; Energy & Fuels ; Engineering

Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical

WOS:000605242300011

ELSEVIER

20202808927915

Carrier transport ; Polymer solar cells ; Systems (metallurgical)

Electricity: Basic Concepts and Phenomena:701.1 ; Solar Cells:702.3 ; Nanotechnology:761 ; Chemical Products Generally:804

Web of Science

1.Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Shenzhen 518055, Guangdong, Peoples R China

Liu, Longzhu,Chao, Pengjie,Mo, Daize,et al. Chlorinated polymer solar cells simultaneously enhanced by fullerene and non-fullerene ternary strategies[J]. Journal of Energy Chemistry,2021,54:620-625.

Liu, Longzhu,Chao, Pengjie,Mo, Daize,&He, Feng.(2021).Chlorinated polymer solar cells simultaneously enhanced by fullerene and non-fullerene ternary strategies.Journal of Energy Chemistry,54,620-625.

Liu, Longzhu,et al."Chlorinated polymer solar cells simultaneously enhanced by fullerene and non-fullerene ternary strategies".Journal of Energy Chemistry 54(2021):620-625.