Tuning charge transport from unipolar (n-type) to ambipolar in bis(naphthalene diimide) derivatives by introducing pi-conjugated heterocyclic bridging moieties
文献类型：期刊论文
| 作者 | Wang, Zongrui1,2; Li, Xiangguang1; Zou, Ye1; Tan, Jiahui1; Fu, Xiaolong1,2; Liu, Jie1,3,4; Xiao, Chengyi1,2; Dong, Huanli1,5; Jiang, Wei1; Liu, Feng6,7 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2016 |
| 卷号 | 4期号:30页码:7230-7240 |
| 英文摘要 | A series of acceptor-donor-acceptor (A-D-A) conjugated molecules based on naphthalene diimide dimers bridged with different pi-conjugated heterocyclic units (NDI-pi-NDI) have been designed and synthesized. By an ingenious design strategy, the LUMO (the lowest unoccupied molecular orbital) of the NDI-based small molecules is well controlled to a relatively constant value of -3.8 to -3.9 eV, whereas their HOMO (the highest occupied molecular orbital) could be tuned over a wide range, from -6.5 eV (compound 1) to -5.5 eV (compound 5), leading to varied band gaps from 2.6 eV to 1.5 eV. Organic field-effect transistor (OFET) characterization of these NDI-pi-NDI molecules shows that compounds 1, 2, and 3 have good n-type semiconducting properties in a N-2 atmosphere with the maximum electron mobilities up to 0.15 cm(2) V-1 s(-1), 0.46 cm(2) V-1 s(-1) and 0.57 cm(2) V-1 s(-1), respectively. Compounds 4 and 5, due to the high-lying HOMO levels and reduced energy band gaps, have ambipolar semiconducting properties and OFETs based on 5 show the highest electron and hole mobilities up to 1.23 cm(2) V-1 s(-1) and 0.0074 cm(2) V-1 s(-1), respectively. Moreover, the performances are enhanced under thermal treatment because of the increased crystallinity as evidenced by X-ray diffraction (XRD) and atomic force microscopy (AFM). The easily tunable electronic energy levels make the NDI-based semiconductors promising n-channel and ambipolar components in organic devices. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35281]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Organ Solids Lab, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tianjin Univ, Key Lab Mol Optoelect Sci, Sch Sci, Tianjin 300072, Peoples R China 4.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China 5.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China 6.Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA 7.Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Wang, Zongrui,Li, Xiangguang,Zou, Ye,et al. Tuning charge transport from unipolar (n-type) to ambipolar in bis(naphthalene diimide) derivatives by introducing pi-conjugated heterocyclic bridging moieties[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(30):7230-7240. |
| APA | Wang, Zongrui.,Li, Xiangguang.,Zou, Ye.,Tan, Jiahui.,Fu, Xiaolong.,...&Hu, Wenping.(2016).Tuning charge transport from unipolar (n-type) to ambipolar in bis(naphthalene diimide) derivatives by introducing pi-conjugated heterocyclic bridging moieties.JOURNAL OF MATERIALS CHEMISTRY C,4(30),7230-7240. |
| MLA | Wang, Zongrui,et al."Tuning charge transport from unipolar (n-type) to ambipolar in bis(naphthalene diimide) derivatives by introducing pi-conjugated heterocyclic bridging moieties".JOURNAL OF MATERIALS CHEMISTRY C 4.30(2016):7230-7240. |
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来源：化学研究所
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