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	Synthesis, structures, and properties of fused thiophenes for organic field-effect transistors
	Liu, Ying1,2; Di, Chong-an1; Du, Chunyan1,2; Liu, Yunqi1; Lu, Kun1,2; Qiu, Wenfeng1; Yu, Gui1
刊名	Chemistry-a european journal
	2010
卷号	16期号:7页码:2231-2239
关键词	Device performance Organic field-effect transistors Semiconductors Sulfur heterocycles
ISSN号	0947-6539
DOI	10.1002/chem.200902755
通讯作者	Liu, yunqi(liuyq@iccas.ac.cn)
英文摘要	A series of fused thiophenes composed of fused alpha-oligothiophene units as building blocks, end-capped with either styrene or 1-pentyl-4-vinyl-benzene groups, has been synthesized through stille coupling reactions. the compounds have been fully characterized by means of (1)h nmr spectrometry, high-resolution mass spectrometry, and elemental analysis. the molecules present a trans-trans configuration between their double bonds, which has been verified and confirmed by fourier-transform infrared spectroscopy and single-crystal x-ray diffraction analysis. the x-ray crystal structures showed pi-pi overlap and sulfur-sulfur interactions between the adjacent molecules. the decomposition temperatures were all found to be above 300 degrees c, indicating that compounds of this series possess excellent thermal stability. the fact that no phase transition occurs at low temperature indicates that they should be well-suited for application in devices. moreover, they possess low homo energy levels, based on cyclic voltammetry measurements, and suitable energy gaps, as determined from their thin-film uv/vis spectra. thin-film x-ray diffraction analysis and atomic force microscopy revealed high crystallinity on supporting substrates. in addition, as the substrate temperature has a significant influence on the morphology and the degree of crystallinity, the device performance could be optimized by varying the substrate temperature. these materials were found to exhibit optimal field-effect performance, with a mobility of 0.17 cm(2)v(-1)s(-1) and an on/off ratio of 10(5), at a substrate temperature of 70 degrees c.
WOS关键词	THIN-FILM TRANSISTORS ; HIGH-PERFORMANCE ; HIGH-MOBILITY ; PHOTOPHYSICAL PROPERTIES ; ALPHA-OLIGOTHIOPHENES ; MOLECULAR-STRUCTURE ; CONJUGATED SYSTEMS ; CRYSTAL-STRUCTURE ; CHAIN-LENGTH ; RING FUSION
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000275397400025
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2410292
专题	中国科学院大学
通讯作者	Liu, Yunqi
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Organ Solids, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ying,Di, Chong-an,Du, Chunyan,et al. Synthesis, structures, and properties of fused thiophenes for organic field-effect transistors[J]. Chemistry-a european journal,2010,16(7):2231-2239.
APA	Liu, Ying.,Di, Chong-an.,Du, Chunyan.,Liu, Yunqi.,Lu, Kun.,...&Yu, Gui.(2010).Synthesis, structures, and properties of fused thiophenes for organic field-effect transistors.Chemistry-a european journal,16(7),2231-2239.
MLA	Liu, Ying,et al."Synthesis, structures, and properties of fused thiophenes for organic field-effect transistors".Chemistry-a european journal 16.7(2010):2231-2239.

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