Chlorinated Random Terpolymers with Efficient Solar Conversion and Low Batch-to-Batch Variation

Pu, Mingrui1,2; Chen, Hui1,2,3; Chao, Pengjie1,2; Zhu, Yulin1,2; Zheng, Nan4; Lai, Hanjian1,2; Zhao, Tingxing1,2; He, Feng1,2,5

2021-01-08

10.1021/acsapm.0c00689

ACS Applied Polymer Materials   影响因子和分区

2637-6105

The strategy of random terpolymerization has been shown to be a flexible and effective method with which to construct state-of-the-art polymer donors, and chlorination has frequently been utilized to fine-tune material properties in these polymers with the aim of improving the solar conversion efficiency. Herein, three random terpolymers consisting of BDT, BDD, and Th-Cl monomers in the optimized ratio of 1:0.85:0.15 were synthesized in parallel in an effort to understand the effect of chlorination in terpolymer systems and the chlorine-containing derviatives (named PBDB-Th15, PBDB-ThCI15, and PBDB-Th2CI15). Among these three polymers, PBDB-ThCI15 shows a low-lying HOMO level, the most balanced hole and electron mobility, and enhanced aggregation behavior in blend film as a result of the introduction of one chlorine atom. When blended with a small molecule accepetor Y6, the resulting PBDB-ThCI15:Y6-based device showed the highest PCE of 15.63% of the three polymers. The PBDB-Th15- and PBDB-Th2CI15-based devices present relatively poor conversion efficiencies of 14.91% and 12.62%. Interestingly, the terpolymer PBDB-ThCI15 was repeatedly prepared by random terpolymerization under the same conditions, and a low batch-to-batch variation was observed with a PCE of similar to 15.50%. These results indicate that the synergy of chlorination with random terpolymerization promises to contribute to the preparation of stable and high-performance solar cell polymers.

chlorination random terpolymerization aggregation behavior low batch-to-batch variation polymer solar cells

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[51903116,51773087,21975115] ; Shenzhen Fundamental Research Program["JCYJ20170817111214740","JCYJ20180302180238419","KQJSCX20180319114442157"] ; Shenzhen Nobel Prize Scientists Laboratory Project[C17213101] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Shenzhen Sci-Tech Fund[KYTDPT20181011104007] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002]

Materials Science ; Polymer Science

Materials Science, Multidisciplinary ; Polymer Science

WOS:000609249200003

AMER CHEMICAL SOC

20211110092624

Chlorination ; Chlorine compounds ; Chlorine containing polymers ; Conversion efficiency ; Efficiency ; Hole mobility ; Polymer solar cells ; Terpolymerization ; Terpolymers

Energy Conversion Issues:525.5 ; Semiconducting Materials:712.1 ; Chemical Reactions:802.2 ; Polymeric Materials:815.1 ; Polymerization:815.2 ; Production Engineering:913.1

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
4.South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China
5.Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Shenzhen 518055, Peoples R China

Pu, Mingrui,Chen, Hui,Chao, Pengjie,et al. Chlorinated Random Terpolymers with Efficient Solar Conversion and Low Batch-to-Batch Variation[J]. ACS Applied Polymer Materials,2021,3(1):14-22.

Pu, Mingrui.,Chen, Hui.,Chao, Pengjie.,Zhu, Yulin.,Zheng, Nan.,...&He, Feng.(2021).Chlorinated Random Terpolymers with Efficient Solar Conversion and Low Batch-to-Batch Variation.ACS Applied Polymer Materials,3(1),14-22.

Pu, Mingrui,et al."Chlorinated Random Terpolymers with Efficient Solar Conversion and Low Batch-to-Batch Variation".ACS Applied Polymer Materials 3.1(2021):14-22.