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High Performance n-Type Organic Field-Effect Transistors Based on π-Electronic Systems with Trifluoromethylphenyl Groups

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posted on 20.04.2005, 00:00 by Shinji Ando, Jun-ichi Nishida, Hirokazu Tada, Youji Inoue, Shizuo Tokito, Yoshiro Yamashita
Novel π-electron systems with trifluoromethylphenyl groups and/or a thiazolothiazole unit were developed as n-type semiconductors for OFETs. They showed excellent n-type performances with high electron mobilities. The trifluoromethylphenyl group was found to be very effective in inducing n-type behavior. The thiazolothiazole unit was favorable for forming stacking structures leading to efficient intermolecular π−π interactions.

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