title: Synthesis of tetrachloro-azapentacene as an ambipolar organic semiconductor with high and balanced carrier mobilities.
abstract: Two new azapentacene derivatives 9,10-dibromo-6,13-bis(triisopropylsilylethynyl)-1-azapentacene (a) and 8,9,10,11-tetrachloro-6,13-bis(triisopropylsilylethynyl)-1-azapentacene (b) were synthesized, and their FET properties were investigated. Compound b exhibits high and balanced ambipolar transport properties, with the hole and electron mobilities reaching up to 0.12 and 0.14 cm(2) V(-1) s(-1), respectively. This work suggests that chlorination to the N-heteropentacene framework is an efficient way for producing high performance ambipolar organic semiconductors.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, R P China.
authors.forename: Cheng-Li
authors.initials: CL
authors.lastname: Song
authors.forename: Chong-Bo
authors.initials: CB
authors.lastname: Ma
authors.forename: Feng
authors.initials: F
authors.lastname: Yang
authors.forename: Wei-Jing
authors.initials: WJ
authors.lastname: Zeng
authors.forename: Hao-Li
authors.initials: HL
authors.lastname: Zhang
authors.forename: Xiong
authors.initials: X
authors.lastname: Gong