Synthesis and characterization of poly(benzodithiophene) derivative for organic thin film transistors
SCIE
SCOPUS
- Title
- Synthesis and characterization of poly(benzodithiophene) derivative for organic thin film transistors
- Authors
- Dang, TTM; Park, SJ; Park, JW; Chung, DS; Park, CE; Kim, YH; Kwon, SK
- Date Issued
- 2007-11-15
- Publisher
- JOHN WILEY & SONS INC
- Abstract
- Poly{2,6-bis(3-dodecylthiophen-2-yl)benzo[1,2-b;4,5-b']dithiophene] (PTBT) was synthesized, via oxidative polymerization by oxidative agent (FeCl3). The mole ratio of FeCl3 and monomer (3.5: 1), and keeping low temperature during the dropping of diluted catalyst were very important for the polymerization without crosslinking. The PTBT was confirmed by H-1 NMR, FTIR spectra, and elemental analysis. The PTBT has very good solubility in organic solvents such as chloroform, tetrahydrofuran, etc, and good thermal stability with T-g of 164 degrees C. The PTBT shows UV-optical absorption at 406 nm and photoluminescence (PL) spectroscopy at 504 mn in a film. The highest occupied molecular orbital (HOMO) energy of the polymer is -5.71 eV by measuring cyclic voltammetry (CV). A solution-processed polymer thin film transistor device shows a mobility of 3 X 10(-5) - 8 X 10(-5) cm(2) V-1 s(-1), and an on/off current ratio of 10(4). (c) 2007 Wiley Periodicals, Inc.
- Keywords
- benzodithiophene; conducting polymers; OTFT; oxidative polymerization; solution properties; spin coating; thiophene; BLUE; POLYMERS; SEMICONDUCTORS; MOBILITY; DEVICES; PURITY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23081
- DOI
- 10.1002/POLA.22272
- ISSN
- 0887-624X
- Article Type
- Article
- Citation
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol. 45, no. 22, page. 5277 - 5284, 2007-11-15
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