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Photocrosslinkable zinc diacrylate-based gate insulators for reliable operation of organic thin film transistors
- Authors
- Rho, Hyun Yeol; An, Tae Kyu; Baek, Seolhee; Park, So Hyun; Lee, Jihoon; Han, Sung Soo; Lee, Hwa Sung; Kim, Se hyun
- Issue Date
- Aug-2018
- Publisher
- Elsevier BV
- Keywords
- Dipentaerythritol penta-/hexa-acrylate; Organic thin-film transistor; Organic-inorganic hybrid material; Pentacene; Photocrosslinkable gate insulator; Zinc diacrylate
- Citation
- Organic Electronics, v.59, pp.49 - 55
- Indexed
- SCIE
SCOPUS
- Journal Title
- Organic Electronics
- Volume
- 59
- Start Page
- 49
- End Page
- 55
- ISSN
- 1566-1199
- Abstract
- We report new organic-inorganic hybrid gate insulator materials containing solution-processable zinc diacrylate (ZnDA) and dipentaerythritol penta-/hexa-acrylate (DPHA) to fabricate high-performance and reliable organic thin film transistors (OTFTs). ZnDA-DPHA organic-inorganic hybrid materials can be crosslinked by ultraviolet illumination (λmax = 365 nm) within 7 min in the presence of a photoinitiator. Hence, the crosslinked insulator film provides not only good insulating properties (such as a dielectric constant of ca. 4.95 and low leakage current of <2 × 10−7 A/cm2 at 2 MV/cm) but also surface properties that can induce good semiconductor growth. Consequently, pentacene-based OTFTs employing the crosslinked ZnDA-DPHA gate insulators showed good electrical performance and reliable device operation. © 2018
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Related Researcher
- Lee, Hwa sung
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)