Poly(1,4-bis((E)-2-(3-dodecylthiophen-2-yl)vinyl)benzene) for Solution Processable Organic Thin Film Transistor

Bulletin of the Korean chemical society

Jin Hak Kim¹  Jonggwang Park¹  Chul Young Kim¹  Min Jung Lee¹  Soon-Ki Kwon¹  Sung-Chul Shin¹  Yun-Hi Kim¹ 

关键词: Organic thin film transistor;    Organic semiconductor;    Mobility;    Solution process;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

New semiconducting polymer, poly[1,4-bis((E)-2-(5-bromo-3-dodecylthiophen-2-yl)vinyl)benzene], was designed, synthesized and characterized. The structure of polymer was confirmed by 1H-NMR, IR and elemental analysis. The polymer was soluble in specific organic solvent. The weight-average molecular weights (MW) of polymer was found to be 11,000 with polydispersity of 1.82. UV-Visible absorption spectrum showed the maximum absorption at 428 nm (in solution) and 438 nm (in film). The highest occupied molecular orbital (HOMO) energy of the polymer is −5.36 eV by measuring cyclic voltammetry (CV). A solutionprocessed polymer thin film transistor device shows a mobility of 8.59 × 10−4 cm2 V−1 s−1, an on/off current ratio of 2.0 × 104.

【 授权许可】

Unknown