Importance of Blade-Coating Temperature for Diketopyrrolopyrrole-based Thin-Film Transistors
| Autor: | Philippe Lang, In Man Kang, Hyeok Kim, Do Kyung Kim, Hyeon-Seok Jeong, Jun-Ik Park, Yun-Hi Kim, Jaewon Jang, Jin-Hyuk Bae |
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| Přispěvatelé: | School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 702-701 Daegu, South Korea, Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Gyeongsang National University |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
blade-coating
Materials science Morphology (linguistics) animal structures General Chemical Engineering 02 engineering and technology Surface finish engineering.material 010402 general chemistry 01 natural sciences law.invention Inorganic Chemistry Crystallinity Coating stomatognathic system law Copolymer lcsh:QD901-999 [CHIM]Chemical Sciences General Materials Science diketopyrrolopyrrole [PHYS]Physics [physics] Transistor donor-acceptor copolymers food and beverages temperature [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences organic thin-film transistor Organic semiconductor Chemical engineering Thin-film transistor engineering lcsh:Crystallography 0210 nano-technology donor–acceptor copolymers |
| Zdroj: | Crystals, Vol 9, Iss 7, p 346 (2019) Crystals Volume 9 Issue 7 Crystals, MDPI, 2019, 9 (7), ⟨10.3390/cryst9070346⟩ |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst9070346⟩ |
| Popis: | In this work, the effect of blade-coating temperature on the electrical properties of a conjugated donor&ndash acceptor copolymer containing diketopyrrolopyrrole (DPP)-based thin-film transistors (TFTs) was systematically analyzed. The organic semiconductor (OSC) layers were blade-coated at various blade-coating temperatures from room temperature (RT) to 80 ° C. No remarkable changes were observed in the thickness, surface morphology, and roughness of the OSC films as the blade-coating temperature increased. DPP-based TFTs exhibited two noticeable tendencies in the magnitude of field-effect mobility with increasing blade-coating temperatures. As the temperature increased up to 40 ° C, the field-effect mobility increased to 148% compared to the RT values. On the contrary, when the temperature was raised to 80 ° C, the field-effect mobility significantly reduced to 20.9% of the mobility at 40 ° C. These phenomena can be explained by changes in the crystallinity of DPP-based films. Therefore, the appropriate setting of the blade-coating temperature is essential in obtaining superior electrical characteristics for TFTs. A blade-coating temperature of 40 ° C was found to be the optimum condition in terms of electrical performance for DPP-based TFTs. |
| Databáze: | OpenAIRE |
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