9,10-Bis(phenylethynyl)anthracene-based organic semiconducting molecules for annealing-free thin film transistors
SCIE
SCOPUS
- Title
- 9,10-Bis(phenylethynyl)anthracene-based organic semiconducting molecules for annealing-free thin film transistors
- Authors
- Bae, SY; Jung, KH; Hoang, MH; Kim, KH; Lee, TW; Cho, MJ; Jin, JI; Lee, DH; Chung, DS; Park, CE; Choi, DH
- Date Issued
- 2010-05
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- New anthracene-containing conjugated molecules have been synthesized through Stille coupling reaction. 2,6-Dibromoanthracene-9,10-dione was reacted with ethynylbenzene or 1-ethynyl-4-hexylbenzene to yield 2,6-dibromo-9,10-bis(phenylethynyl)anthracene 4 and 2,6-dibromo-9,10-bis((4-hexylphenyl) ethynyl)anthracene 5. Tributyl(5-hexylthiophen-2-yl)stannane was coupled through Stille reaction to generate two anthracene-based X-shaped molecules. They exhibit good solubility in common organic solvents and good self-film-forming properties. The semiconducting properties of the two molecules were evaluated in organic thin film transistors (OTFTs). Two conjugated molecules 7 and 8 exhibit fairly high charge carrier mobilities-as high as 0.010-0.014 cm(2) V-1 s(-1) (I-on/I-off=1.27 x 10(7) to 4.38 x 10(6)) without thermal annealing process. The X-shaped molecules result in easy crystallization and densely cover the surface of a dielectric layer. This helps in attaining good network interconnection for the carrier transport channel, which is responsible for the relatively high carrier mobility in solution-processed OTFT. (C) 2010 Elsevier B.V. All rights reserved.
- Keywords
- X-shaped conjugated molecules; Anthracene; Absorption; Semiconductor; Mobility; Organic thin film transistor; FIELD-EFFECT TRANSISTORS; HIGH-PERFORMANCE; HIGH-MOBILITY; PENTACENE TRANSISTORS; DERIVATIVES; TRANSPORT; OLIGOMERS; POLYMER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25877
- DOI
- 10.1016/J.SYNTHMET.2010.02.020
- ISSN
- 0379-6779
- Article Type
- Article
- Citation
- SYNTHETIC METALS, vol. 160, no. 9-10, page. 1022 - 1029, 2010-05
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- There are no files associated with this item.
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