| 초록 |
Six new carbazole and α-carboline derivatives, 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-carbazol-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 relatively low device performance, carrier mobility of 10^-5 – 10^-7 cm^2/Vs and a current on/off ratio of 10^4 – 10^6 for top-contact/bottom-gate OTFT devices. The characteristics of devices have been figured out with the film morphologies and mircrostructures with each corressponding compounds. The device characteristics have been correlated with the film morphologies and microstructures of the corresponding compounds. |
