Synthesis and charge-transporting properties of electron-deficient CN2-fluorene based D-A copolymers
文献类型：期刊论文
| 作者 | Huang, Jianhua1; Zhao, Yan2; Ding, Xunlei3; Jia, Hui1; Jiang, Bo1; Zhang, Zhiguo2; Zhan, Chuanlang1; He, Shenggui3; Pei, Qibing4; Li, Yongfang2 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2012 |
| 卷号 | 3期号:8页码:2170-2177 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c2py20184d |
| 英文摘要 | In this paper, we report four D-A copolymers on the basis of a novel acceptor (A) unit of 9-fluorenylidene malononitrile (CN2-Fluorene) and four common donor (D) units of 9-alkylfluorene (P1), benzodithiophene (P2), bithiophene (P3), and dithienopyrrole (P4), respectively. These four copolymers were synthesized using Stille or Suzuki coupling and physicochemically characterized. Each of them exhibits a weak near IR absorption band extending down to 800 nm, due to weak intramolecular charge transfer (ICT) between the donor and CN2-Fluorene units. The LUMO energy levels of the copolymers (similar to-3.70 eV) are determined mainly by the CN2-Fluorene unit, while the HOMO energy levels are finely tuned by the incorporation of donors, with the electrochemical bandgap decreasing from 2.04 eV for P1 to 1.56 eV for P2, 1.28 eV for P3, and 1.18 eV for P4. TD-DFT calculations on one repeating unit of the copolymer confirm the strong LUMO-determining ability of the CN2-Fluorene unit. The charge transport properties of the copolymers are investigated by fabricating OTFT devices with a bottom-contact configuration. The hole mobility of P3 is 1.43 x 10(-3) cm(2) V-1 s(-1) under ambient conditions and that of P2 and P4 is 1.31 x 10(-4) and 1.81 x 10(-4) cm(2) V-1 s(-1), respectively. |
| 语种 | 英语 |
| WOS记录号 | WOS:000305964400031 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47617]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhan, Chuanlang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 4.Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA |
| 推荐引用方式 GB/T 7714 | Huang, Jianhua,Zhao, Yan,Ding, Xunlei,et al. Synthesis and charge-transporting properties of electron-deficient CN2-fluorene based D-A copolymers[J]. POLYMER CHEMISTRY,2012,3(8):2170-2177. |
| APA | Huang, Jianhua.,Zhao, Yan.,Ding, Xunlei.,Jia, Hui.,Jiang, Bo.,...&Yao, Jiannian.(2012).Synthesis and charge-transporting properties of electron-deficient CN2-fluorene based D-A copolymers.POLYMER CHEMISTRY,3(8),2170-2177. |
| MLA | Huang, Jianhua,et al."Synthesis and charge-transporting properties of electron-deficient CN2-fluorene based D-A copolymers".POLYMER CHEMISTRY 3.8(2012):2170-2177. |
入库方式： OAI收割
来源：化学研究所
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