title: Synthesis and Characterization of Benzothiadiazole Derivatives as Organic Semiconductors for Organic Thin-Film Transistors.
abstract: New benzothiadiazole derivatives end-functionalized with carbazole and a-carboline, 4,7-di(9H-carbazol-9-yl)benzo[c][1,2,5]thiadiazole (1) and 4-(9H-carbazol-9-yl)-7-(9H-pyrido[2,3-bindol-9-yl) benzo[c][1,2,5]thiadiazole (2) were synthesized and characterized as organic semiconductors for organic thin-film transistors (OTFTs). Thermal, optical, and electrochemical properties of the corresoponding compounds were characterized. Thin films of compound 1 exhibited p-channel characteristics with carrier mobility as high as 10⁻⁴ cm²/Vs and a current on/off ratio of 10⁵ for top-contact/bottom-gate OTFT devices.
authors.forename: Dahae
authors.initials: D
authors.lastname: Jung
authors.forename: Bodakuntla
authors.initials: B
authors.lastname: Thirupathaiah
authors.forename: Eunsoo
authors.initials: E
authors.lastname: Lee
authors.forename: Guhyun
authors.initials: G
authors.lastname: Kwon
authors.forename: Choongik
authors.initials: C
authors.lastname: Kim
authors.forename: SungYong
authors.initials: S
authors.lastname: Seo
mesh_terms: D001581:Benzothiadiazines / Q000737:chemistry*; D055664:Electrochemical Techniques; D014173:Transistors, Electronic
chemical_list: D001581:Benzothiadiazines