Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells

	Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells
	Kan, Bin 1,2,3; Feng, Huanran 1,2,3; Wan, Xiangjian 1,2,3; Liu, Feng 5; Ke, Xin 1,2,3; Wang, Yanbo 1,2,3; Wang, Yunchuang 1,2,3; Zhang, Hongtao 1,2,3; Li, Chenxi 1,2,3; Hou, Jianhui 4
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2017-04-05
卷号	139 期号:13 页码:4929-4934
英文摘要	A new nonfullerene small molecule with acceptor donor acceptor (A-D-A) structure, namely, NFBDT, based on a heptacyclic benzodi(cyclopentadithiophene) (FBDT) unit using benzo[1,2-b:4,5-b']-dithiophene as the core unit, was designed and synthesized. Its absorption ability, energy levels, thermal stability, as well as photovoltaic performances were fully investigated. NFBDT exhibits a low optical bandgap of 1.56 eV resulting in wide and efficient absorption that covered the range from 600 to 800 nm, and suitable energy levels as an electron acceptor. With the widely used and successful wide bandgap polymer PBDB-T selected as the electron donor material, an optimized PCE of 10.42% was obtained for the PBDBT:NFBDT-based device with an outstanding short-circuit current density of 17.85 mA cm(2) under AM 1.5G irradiation (100 mW cm(2)), which is so far among the highest performance of NF-OSC devices. These results demonstrate that the BDT unit could also be applied for designing NF acceptors, and the fused-ring benzodi(cyclopentadithiophene) unit is a prospective block for designing new NF-acceptors with excellent performance.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38095]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Nankai Univ, Coll Chem, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China 2.Nankai Univ, Collaborat Innovat Ctr Chem Sci & Engn, State Key Lab & Inst Element Organ Chem, Tianjin 300071, Peoples R China 3.Nankai Univ, Natl Inst Adv Mat, Sch Mat Sci & Engn, Tianjin 300071, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 5.Shandong Jiaotong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Kan, Bin,Feng, Huanran,Wan, Xiangjian,et al. Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(13):4929-4934.
APA	Kan, Bin.,Feng, Huanran.,Wan, Xiangjian.,Liu, Feng.,Ke, Xin.,...&Chen, Yongsheng.(2017).Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(13),4929-4934.
MLA	Kan, Bin,et al."Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.13(2017):4929-4934.