Acceptor Unit Effects for Ambipolar Organic Field-Effect Transistors Based on TIPS-Benzodithiophene Copolymers
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- Title
- Acceptor Unit Effects for Ambipolar Organic Field-Effect Transistors Based on TIPS-Benzodithiophene Copolymers
- Authors
- NOH, YONG YOUNG; Henry Opoku; Chinna Bathula; Melaku Dereje Mamo; Nabeen K. Shrestha; Taegweon Lee
- Date Issued
- 2019-01
- Publisher
- 한국고분자학회
- Abstract
- Two narrow band gap triisopropylsilyl substituted benzo[1,2-b:4,5-b] dithiophene (TIPS-BDT) derivatives, P1 (1.65 eV) and P2 (1.46 eV) are synthesized for ambipolar organic field-effect transistors and complementary inverters. Two electron acceptor units, heptadecanyl substituted thieno[3,4-c]pyrrole-4,6-dione (TPD) and ethylhexyl substituted diketopyrrolo[3,4-c]pyrrole (DPP) are incorporated to tune the structure and resulting properties of the donor-acceptor type copolymers. Structural modification based on the acceptor unit variation, resulted in comparable electrochemical, optical, microstructural, and charge transporting properties, as well as environmental and operational stability. TIPS-BDT copolymers with TPD acceptor units show comparatively superior performance, with field effect mobility approximate to 10(-3) cm(2)V(-1)s(-1) for both holes and electrons and inverter gain approximate to 18 with poly(methyl methacrylate) gate dielectric.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/99701
- DOI
- 10.1007/s13233-019-7008-5
- ISSN
- 1598-5032
- Article Type
- Article
- Citation
- Macromolecular Research, vol. 27, no. 1, page. 90 - 95, 2019-01
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