A feasibly synthesized ladder-type conjugated molecule as the novel high mobility n-type organic semiconductor | |
Tian, Hongkun1; Deng, Yunfeng1,2; Pan, Feng1,2; Huang, Lizhen1,2; Yan, Donghang1; Geng, Yanhou1; Wang, Fosong1 | |
刊名 | JOURNAL OF MATERIALS CHEMISTRY |
2010 | |
卷号 | 20期号:37页码:7998-8004 |
ISSN号 | 0959-9428 |
DOI | 10.1039/c0jm01173h |
英文摘要 | Two ladder-type conjugated molecules, i.e., 2,2'-(2,7-dihexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b'] dithiophene-4,9-diylidene) dimalononitrile (1) and 2,7-dihexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b'] dithiophene-4,9-dione (2) were synthesized in high yields, and their electrochemical properties, single crystal structures, thin-film morphology and field-effect mobility were investigated. The LUMO/HOMO levels of 1 and 2 are -4.07/-6.00 and -3.62/-5.82 eV, respectively, as estimated from the thin-film cyclic voltammetry measurements. In the single crystals, both compounds exhibit one dimensional pi-pi stacking of molecules, and 1 shows the larger pi-electron overlap between the neighboring molecules than 2, along with interdigitation of alkyl chains. Thin-film X-ray diffraction (XRD) and atomic force microscopy (AFM) characterizations indicate that 1 can form films with higher molecular order than 2. Field-effect electron mobility up to 0.33 cm(2) V(-1) s(-1) in air for 1 and hole mobility up to 0.05 cm(2) V(-1) s(-1) for 2 have been demonstrated with the top-contact organic thin-film transistor (OTFT) device structure. Electron mobility of 1 is among the highest value for n-type organic semiconductors. |
语种 | 英语 |
出版者 | ROYAL SOC CHEMISTRY |
WOS记录号 | WOS:000281726600013 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/71113] |
专题 | 中国科学院化学研究所 |
通讯作者 | Geng, Yanhou |
作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Tian, Hongkun,Deng, Yunfeng,Pan, Feng,et al. A feasibly synthesized ladder-type conjugated molecule as the novel high mobility n-type organic semiconductor[J]. JOURNAL OF MATERIALS CHEMISTRY,2010,20(37):7998-8004. |
APA | Tian, Hongkun.,Deng, Yunfeng.,Pan, Feng.,Huang, Lizhen.,Yan, Donghang.,...&Wang, Fosong.(2010).A feasibly synthesized ladder-type conjugated molecule as the novel high mobility n-type organic semiconductor.JOURNAL OF MATERIALS CHEMISTRY,20(37),7998-8004. |
MLA | Tian, Hongkun,et al."A feasibly synthesized ladder-type conjugated molecule as the novel high mobility n-type organic semiconductor".JOURNAL OF MATERIALS CHEMISTRY 20.37(2010):7998-8004. |
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