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Donor Derivative Incorporation: An Effective Strategy toward High Performance All-Small-Molecule Ternary Organic Solar Cells

文献类型：期刊论文

作者Tang, Hua1,4,5; Xu, Tongle4,5; Yan, Cenqi1; Gao, Jie4; Yin, Hang1; Lv, Jie4,5; Singh, Ranbir2; Kumar, Manish3; Duan, Tainan4; Kan, Zhipeng4
刊名ADVANCED SCIENCE
出版日期2019-11-01
卷号6期号:21页码:8
关键词morphology organic solar cells small molecules structural similarity thick films
DOI10.1002/advs.201901613
通讯作者Kan, Zhipeng(kanzhipeng@cigit.ac.cn) ; Lu, Shirong(lushirong@cigit.ac.cn) ; Li, Gang(gang.w.li@polyu.edu.hk)
英文摘要Thick-film all-small-molecule (ASM) organic solar cells (OSCs) are preferred for large-scale fabrication with printing techniques due to the distinct advantages of monodispersion, easy purification, and negligible batch-to-batch variation. However, ASM OSCs are typically constrained by the morphology aspect to achieve high efficiency and maintain thick film simultaneously. Specifically, synchronously manipulating crystallinity, domain size, and phase segregation to a suitable level are extremely challenging. Herein, a derivative of benzodithiophene terthiophene rhodanine (BTR) (a successful small molecule donor for thick-film OSCs), namely, BTR-OH, is synthesized with similar chemical structure and absorption but less crystallinity relative to BTR, and is employed as a third component to construct BTR:BTR-OH:PC71BM ternary devices. The power conversion efficiency (PCE) of 10.14% and fill factor (FF) of 74.2% are successfully obtained in approximate to 300 nm OSC, which outperforms BTR:PC71BM (9.05% and 69.6%) and BTR-OH:PC71BM (8.00% and 65.3%) counterparts, and stands among the top values for thick-film ASM OSCs. The performance enhancement results from the enhanced absorption, suppressed bimolecular/trap-assisted recombination, improved charge extraction, optimized domain size, and suitable crystallinity. These findings demonstrate that the donor derivative featuring similar chemical structure but different crystallinity provides a promising third component guideline for high-performance ternary ASM OSCs.
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者WILEY
WOS记录号WOS:000496253700024
源URL[http://119.78.100.138/handle/2HOD01W0/10291]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Kan, Zhipeng; Lu, Shirong; Li, Gang
作者单位1.Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hong Hum, Kowloon, Hong Kong, Peoples R China
2.Dongguk Univ, Dept Energy & Mat Engn, Seoul 04620, South Korea
3.Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang 37673, South Korea
4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Hua,Xu, Tongle,Yan, Cenqi,et al. Donor Derivative Incorporation: An Effective Strategy toward High Performance All-Small-Molecule Ternary Organic Solar Cells[J]. ADVANCED SCIENCE,2019,6(21):8.
APA Tang, Hua.,Xu, Tongle.,Yan, Cenqi.,Gao, Jie.,Yin, Hang.,...&Li, Gang.(2019).Donor Derivative Incorporation: An Effective Strategy toward High Performance All-Small-Molecule Ternary Organic Solar Cells.ADVANCED SCIENCE,6(21),8.
MLA Tang, Hua,et al."Donor Derivative Incorporation: An Effective Strategy toward High Performance All-Small-Molecule Ternary Organic Solar Cells".ADVANCED SCIENCE 6.21(2019):8.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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