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Journal Article
Thin-Film Morphologies and Solution-Processable Field-Effect Transistor Behavior of a Fluorene-Thieno[3,2-b]thiophene-Based Conjugated Copolymer
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- Authors
- Eun Hee Lim, Byung Jun Jung, Jae Min Lee, Hong Ku Shim, Jeong Ik Lee, Yong Suk Yang, Lee Mi Do
- Issue Date
- 2005-05
- Citation
- Macromolecules, v.38, no.10, pp.4531-4535
- ISSN
- 0024-9297
- Publisher
- American Chemical Society(ACS)
- Language
- English
- Type
- Journal Article
- Abstract
- A fluorene- and thienol[3,2-b]thiophene-based copolymer suitable for use as semiconducting materials in solution-processable organic field-effect transistors were synthesized. Replacement of the flexible bithiophene in F8T2 with a rigid fused thieno[3,2-b]thiophene yielded a polymer (F8TT) with higher crystallinity and an ordered morphology. Improvements in the performances of TFTs based on F8TT should be possible by the optimization of the fabrication conditions and/or the alignment technique for molecular orientation. The study provides valuable information on the relationship between the molecular structure of a semiconducting material and its electrical performance in thin film electronic devices.
- KSP Keywords
- Conjugated copolymers, Electrical performance, Fabrication conditions, Field Effect Transistor(FET), Molecular orientation, Molecular structure, Organic field-effect transistor(OFET), electronic devices, semiconducting materials, solution-processable, thin film(TF)