Improved charge transport in fused-ring bridged hemi-isoindigo-based small molecules by incorporating a thiophene unit for solution-processed organic field-effect transistors
SCIE
SCOPUS
- Title
- Improved charge transport in fused-ring bridged hemi-isoindigo-based small molecules by incorporating a thiophene unit for solution-processed organic field-effect transistors
- Authors
- Guobing Zhang; Ruikun Chen; Yue Sun; Boseok Kang; Mingxiang Sun; Hongbo Lu; Longzhen Qiu; CHO, KIL WON; Yunsheng Ding
- Date Issued
- 2020-01-28
- Publisher
- ROYAL SOC CHEMISTRY
- Abstract
- Two acceptor-donor-acceptor small molecules based on a fused ring indacenodithieno[3,2-b]thiophene (IDTT) as a donor, and hemi-isoindigo units, methyleneoxindole (IDTT-MI) and thienylmethyleneoxindole (IDTT-T-MI) as acceptors were synthesized and characterized for application in solution-processed organic field-effect transistors. The incorporation of a thiophene bridge which extended the conjugation of the backbone maintained highly co-planar structures, and also endowed the small molecule with ordered crystalline structures and interconnected morphology. Consequently, IDTT-T-MI-based organic field-effect transistors exhibited a highest hole mobility of 0.80 cm(2) V-1 s(-1), which was the highest mobility for solution-processed hemi-isoindigo-based organic semiconductor materials.
- Keywords
- POLYMER SEMICONDUCTORS; CONJUGATED POLYMERS; HOLE MOBILITIES; BUILDING-BLOCK; DERIVATIVES; DESIGN
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/103346
- DOI
- 10.1039/c9tc05374c
- ISSN
- 2050-7526
- Article Type
- Article
- Citation
- JOURNAL OF MATERIALS CHEMISTRY C, vol. 8, no. 4, page. 1398 - 1404, 2020-01-28
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