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    題名: Thiophene-Phenylene and Thiophene-Thiazole Oligomeric Semiconductors with High Field-Effect Transistor On/Off Ratios
    作者: Hong, X. M.;Katz, H. E.;Lovinger, A. J.;王伯昌;Wang, B. C.;Raghavachari, K.
    貢獻者: 淡江大學化學學系
    日期: 2001-11-08
    上傳時間: 2009-12-01
    出版者: American Chemical Society (ACS)
    摘要: A series of thiophene-containing oligomers that are less electron rich than alpha-6T were synthesized, and the thin film morphologies and field-effect transistor characteristics of the oligomers were evaluated. Phenyl and thiazole rings were included in many of the oligomers, and a new synthesis of perfluoroalkylmethyl-terminated oligomers was developed. Desirably low off currents were associated with calculated highest occupied molecular orbital energies above ca. 5.0 eV relative to vacuum. Some of the oligomers displayed mobilities above 0.01 cm2 (Vs)-1, but there was no correlation of mobility with calculated orbital energies and some compounds with seemingly continuous morphologies had low mobilities nonetheless. One compound, 1,4-bis(5‘-hexyl-2,2‘-bithiophen-5-yl)benzene, showed promising behavior as a solution-deposited semiconductor, with mobility up to 0.02 cm2 (Vs)-1 and an on/off ratio up to 20 000.
    關聯: Chemistry of materials 13(12), pp.4686-4691
    DOI: 10.1021/cm010496z
    顯示於類別:[化學學系暨研究所] 期刊論文

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