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Poly(1,4-bis((E)-2-(3-dodecylthiophen-2-yl)vinyl)benzene) for Solution Processable Organic Thin Film Transistor
- Authors
- Kim, Chul Young; Park, Jonggwang; Lee, Min Jung; Kwon, Soon-Ki; Kim, Jin Hak; Shin, Sung-Chul; Kim, Yun-Hi
- Issue Date
- May-2012
- Publisher
- 대한화학회
- Keywords
- Organic thin film transistor; Organic semiconductor; Mobility; Solution process
- Citation
- Bulletin of the Korean Chemical Society, v.33, no.5, pp 1659 - 1663
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- Bulletin of the Korean Chemical Society
- Volume
- 33
- Number
- 5
- Start Page
- 1659
- End Page
- 1663
- ISSN
- 0253-2964
1229-5949
- Abstract
- 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 H-1-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 solution-processed polymer thin film transistor device shows a mobility of 8.59 x 10(-4) cm(2) V-1 s(-1), an on/off current ratio of 2.0 x 10(4).
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