| 초록 |
New pyrrolo-perylene derivatives comprising a new class of organic semiconductor were designed for solution processed OTFTs. Newly designed 2-(naphthalen-2-yl) thiophene end capped pyrrolo-perylene, 3,10-bis (5-(naphthalene-2-yl)thiophen-2-yl)-1-(2-octyldodecyl)-1H-phenanthro[1,10,9,8-cdefg]carbazole(NTPP), and bithiophene end capped pyrrolo-perylene, 3,10-bis ([2,2'-bithiophen]-5-yl)-1-(2-octyldodecyl)-1H-phenanthro[1,10,9,8-cdefg] carbazole (BTPP), were synthesized by Suzuki coupling and Stille coupling reaction, respectively. NTPP and BTPP showed good solubility in common organic solvents and were characterized by NMR, FT-IR, Mass and UV-visible spectroscopy. Solution processed OTFTs using BTPP exhibited high field-effect mobilities up to 0.11 cm2 V-1 S-1 with an on/off ratio of 1 × 104 and a very small threshold voltage of 0 V. |
