pi-Conjugated polymers derived from 2,5-bis-(2-decyltetradecyl)-3,6-di(selenophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione for high-performance thin film transistors
- Authors
- Lee, Tae Wan; Lee, Dae Hee; Shin, Jicheol; Cho, Min Ju; Choi, Dong Hoon
- Issue Date
- 2015
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- POLYMER CHEMISTRY, v.6, no.10, pp.1777 - 1785
- Indexed
- SCIE
SCOPUS
- Journal Title
- POLYMER CHEMISTRY
- Volume
- 6
- Number
- 10
- Start Page
- 1777
- End Page
- 1785
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96376
- DOI
- 10.1039/c4py01536c
- ISSN
- 1759-9954
- Abstract
- Novel 2,5-bis(2-decyltetradecyl)-3,6-di(selenophen-2-yl) pyrrolo[ 3,4-c] pyrrole-1,4(2H, 5H)-dione (DSDPP)-containing conjugated polymers with different donor monomers were synthesized via a Pd(0)-catalyzed Stille coupling reaction. Solubilized 2-decyltetradecyl (DT) groups were tethered to the N-atoms in diketopyrrolopyrrole (DPP). As electron-donating units, bithiophene (BT) and a pi-extended (E)-2-(2-(thiophen-2-yl) vinyl) thiophene (TVT) were introduced into the polymer backbone. Besides thiophene-based monomers, biselenophene (BS) and (E)-2-(2-(selenophen-2-yl) vinyl) selenophene (SVS) were also copolymerized with the same DSDPP-based monomer. DSDPP-BS and DSDPP-SVS copolymers exhibited higher hole mobilities in thin film transistors (TFTs) than the corresponding BT and TVT analogs. In particular, a TFT having a DSDPP-SVS copolymer-based active layer showed the highest hole mobility of similar to 5.23 cm(2) V-1 s(-1) and high current on/off ratios of similar to 10(7); this indicates that the p-extended SVS significantly improves charge transport properties.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.