Improvement of Photovoltaic Performance of Polymer Solar Cells by Rational Molecular Optimization of Organic Molecule Acceptors

doi:10.1002/aenm.201800815

CORC > 化学研究所 > 中国科学院化学研究所

	Improvement of Photovoltaic Performance of Polymer Solar Cells by Rational Molecular Optimization of Organic Molecule Acceptors
	Li, Xiaojun 1,2; Yao, Jia 1,3; Angunawela, Indunil 4,5; Sun, Chenkai 1,2; Xue, Lingwei 1; Liebman-Pelaez, Alexander 6; Zhu, Chenhui 6; Yang, Chunhe 3; Zhang, Zhi-Guo 1; Ade, Harald 4,5
刊名	ADVANCED ENERGY MATERIALS
	2018-08-16
卷号	8 期号:23
关键词	Molecular Structure Optimization N-type Organic Semiconductors Organic Molecule Acceptors Polymer Solar Cells Power Conversion Efficiencies
ISSN号	1614-6832
DOI	10.1002/aenm.201800815
英文摘要	Two n-type organic semiconductor (n-OS) small molecules m-ITIC-2F and m-ITIC-4F with fluorinated 2-(2,3-dihydro-3-oxo-1H-inden-1-ylidene)propanedinitrile (IC) terminal moieties are prepared, for the application as an acceptor in polymer solar cells (PSCs), to further improve the photovoltaic performance of the n-OS acceptor 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene) indanone) -5,5,11,11-tetrakis(3-hexylphenyl)-dithieno[2,3-d:2',3'-d']-sindaceno[1,2-b:5,6-b']-dithiophene (m-ITIC). Compared to m-ITIC, these two new acceptors show redshifted absorption, higher molecular packing order, and improved electron mobilities. The power conversion efficiencies (PCE) of the as-cast PSCs with m-ITIC-2F or m-ITIC-4F as an acceptor and a low-cost donor-acceptor (D-A) copolymer PTQ10 as a donor reach 11.57% and 11.64%, respectively, which are among the highest efficiency for the as-cast PSCs so far. Furthermore, after thermal annealing treatment, improved molecular packing and enhanced phase separation are observed, and the higher PCE of 12.53% is achieved for both PSCs based on the two acceptors. The respective and unique advantage with the intrinsic high degree of order, molecular packing, and electron mobilities of these two acceptors will be suitable to match with different p-type organic semiconductor donors for higher PCE values, which provide a great potential for the PSCs commercialization in the near future. These results indicate that rational molecular structure optimization is of great importance to further improve photovoltaic properties of the photovoltaic materials.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000441741900021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42393]
专题	中国科学院化学研究所
通讯作者	Yang, Chunhe; Zhang, Zhi-Guo; Ade, Harald; Li, Yongfang
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China 3.Beijing JiaoTong Univ, Sch Sci, Dept Chem, Beijing 100044, Peoples R China 4.North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA 5.North Carolina State Univ, Organ & Carbon Elect Lab, Raleigh, NC 27695 USA 6.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 7.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaojun,Yao, Jia,Angunawela, Indunil,et al. Improvement of Photovoltaic Performance of Polymer Solar Cells by Rational Molecular Optimization of Organic Molecule Acceptors[J]. ADVANCED ENERGY MATERIALS,2018,8(23).
APA	Li, Xiaojun.,Yao, Jia.,Angunawela, Indunil.,Sun, Chenkai.,Xue, Lingwei.,...&Li, Yongfang.(2018).Improvement of Photovoltaic Performance of Polymer Solar Cells by Rational Molecular Optimization of Organic Molecule Acceptors.ADVANCED ENERGY MATERIALS,8(23).
MLA	Li, Xiaojun,et al."Improvement of Photovoltaic Performance of Polymer Solar Cells by Rational Molecular Optimization of Organic Molecule Acceptors".ADVANCED ENERGY MATERIALS 8.23(2018).