| 초록 |
A series of end-capped thiophene-based oligomers containing anthracene moiety in the center of molecules, 9,10-bis(5’-hexyl-2,2’-bithiophen-5’-yl)anthracene, 9,10-bis(5’-(dimethyloctyl)silyl-2,2’-bithiophen-5’-yl)anthracene, 9,10-bis(5’-hexyl-2,2’:5’,2’’-terthiophen-5’’-yl)anthracene, and 9,10-bis(5’-(dimethyloctyl)silyl-2,2’:5’,2”-bithio phen-5’’-yl)anthracene were synthesized using Stille reactions. The devices to test p-type transistor ability were fabricated utilizing vaccum deposition and spin coating methods with hexyl substituted oligomeric thiophenes. The device test revealed no ability for p-type transistor which seems to be ascribed by break of conjugation through a nonlinear conformational disposition of anthracene moiety in the oligomeric arene array. We observed that the anthracene containing oligomeric thiophenes exhibit lower viscosity comparing to the sexithiophene compounds which can render disadvantage in fabricating device with well formed layer. |
