Lithium benzoate doped high performance n-type diketopyrrolopyrrole based organic thin-film transistors
SCIE
SCOPUS
- Title
- Lithium benzoate doped high performance n-type diketopyrrolopyrrole based organic thin-film transistors
- Authors
- Gunel Huseynova; Eul-Yong Shin; Won-Tae Park; NOH, YONG YOUNG
- Date Issued
- 2019-03
- Publisher
- Elsevier BV
- Abstract
- We report lithium benzoate (LB) as an effective electron dopant for commonly used diketopyrrolopyrrole (DDP) based electron donor-acceptor conjugated polymers and its application in organic thin-film transistors (OTFTs). Three DPP derivative classes were considered: ambipolar, electron dominant, and hole dominant semiconducting polymers. Applying LB dopant at the contact or semiconducting layer bulk significantly improved overall n-channel performance more than 100-fold, such as electron mobility and on/off current ratio for solution -processed DPP based OTFTs compared with pristine devices. The best DPP based OTFTs with LB achieved high electron mobility (0.6 cm(2) V-1 s(-1)) with excellent operational stability. In particular, complete ambipolar transport modulation to unipolar n-type was achieved for n-channel dominant OTFTs devices.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/100476
- DOI
- 10.1016/j.dyepig.2018.10.032
- ISSN
- 0143-7208
- Article Type
- Article
- Citation
- Dyes and Pigments, vol. 162, page. 243 - 248, 2019-03
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