title: Terazulene: a high-performance n-type organic field-effect transistor based on molecular orbital distribution control.
abstract: We present herein a linear expanded π-conjugation system comprising azulene units: 2,6':2',6″-terazulene. This simple hydrocarbon exhibits excellent n-type transistor performance with an electron mobility of up to 0.29 cm(2) V(-1) s(-1). The lowest unoccupied molecular orbital (LUMO) is well distributed over the entire molecule, whereas the highest occupied molecular orbital (HOMO) is localized at one end. These findings indicate a disadvantage of hole carrier transport and an advantage of n-type-specific transport behavior. This system presents an unconventional concept: polarity control of OFET by molecular orbital distribution control.
authors: Graduate School of Science and Engineering, Yamagata University , 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan.
authors: Yuji
authors: Y
authors: Yamaguchi
authors: Keisuke
authors: K
authors: Ogawa
authors: Ken-Ichi
authors: K
authors: Nakayama
authors: Yoshihiro
authors: Y
authors: Ohba
authors: Hiroshi
authors: H
authors: Katagiri