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. The high mobility of BTPP is attributed to high crystallinity with “edge-on” orientation relative to the substrate based on the results of the out-of–plane XRD pattern and DFT calculation using Gaussian as well as AFM. |