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Effect of High-Speed Blade Coating on Electrical Characteristics in Polymer Based Transistors
- Authors
- Park, Jun-Ik; Jeong, Hyun-Seok; Vincent, Premkumar; Park, Jihwan; Kim, Do-Kyung; Jang, Jaewon; Kang, In Man; Kim, Hyeok; Kim, Yun-Hi; Lang, Philippe; Bae, Jin-Hyuk
- Issue Date
- Sep-2020
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Organic TFTs; Blade Coating Speed; Donor-Acceptor Polymers; Solution-Process
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.20, no.9, pp.5486 - 5490
- Indexed
- SCIE
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 20
- Number
- 9
- Start Page
- 5486
- End Page
- 5490
- ISSN
- 1533-4880
- Abstract
- We explore the effect of high-speed blade coating on electrical characteristics of conjugated polymer-based thin-film transistors (TFTs). As the blade-coating speed increased, the thickness of the polymer thin-film was naturally increased while the surface roughness was found to be unchanged. Polymer TFTs show two remarkable tendencies on the magnitude of field-effect mobility with increasing blade-coating speed. As the blade-coating speed increased up to 2 mm/s, the field-effect mobility increased to 4.72 cm(2)V(-1)s(-1). However, when the coating speed reached 6 mm/s beyond 2 mm/s, the field-effect mobility rather decreased to 3.18 cm(2)V(-1)s(-1). The threshold voltage was positively shifted from 2.09 to 8.29 V with respect to increase in blade-coating speed.
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