title: Novel Organic Semiconductors Based on Phenyl and Phenylthienyl Derivatives for Organic Thin-Film Transistors.
abstract: New phenyl and phenylthienyl derivatives end-functionalized with carbazole and α-carboline, 9-(4- (9H-carbazol-9-yl)phenyl)-9H-carbazole, 9-(4-(9H-carbazol-9-yl)phenyl)-9H-pyrido[2,3-b]indole, 9-(3-(9H-carbazol-9-yl)phenyl)-9H-carbazole, 9-(3-(9H-carbazol-9-yl)phenyl)-9H-pyrido[2,3-b]indole, 9-(4-(5-(9H-carbazol-9-yl)thiophen-2-yl)phenyl)-9H-carbazole, and 9-(3-(5-(9H-carbazo-9-yl) thiophen-2-yl)phenyl)-9H-carbazole were synthesized and characterized as organic semiconductors for organic thin-film transistors (OTFTs). Most compounds exhibited p-channel characteristics with carrier mobility as high as 1.7 x 10⁻⁵ cm²/Vs and a current on/off ratio of 10²-10⁴ for top-contact/bottom-gate OTFT devices.
authors.forename: Eunsoo
authors.initials: E
authors.lastname: Lee
authors.forename: Bodakuntla
authors.initials: B
authors.lastname: Thirupathaiah
authors.forename: Jaeuk
authors.initials: J
authors.lastname: Han
authors.forename: Jung
authors.initials: J
authors.lastname: Dahae
authors.lastname: Guhyun Kwon
authors.forename: Choongik
authors.initials: C
authors.lastname: Kim
authors.forename: SungYong
authors.initials: S
authors.lastname: Seo