| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Preparation and Characterization of a Novel Polyimide/Surface Modified BaTiO3 Nanocomposite for Solution Processable High k Dielectric |
| 초록 |
The development of high performance flexible electronics requires dielectrics possessing a high dielectric constant and enhanced mechanical stability. We report on a novel polymer nanocomposite dielectric based on 3-glycidoxypropyltrimethoxysilane (GPTES) functionalized barium titanate (BaTiO3) nanoparticle as a dopant in crosslinkable polyimide (PI). Polyimide (DOCDA-6FHAB) was synthesized using the monomers, DOCDA and 6FHAB. And then, we introduced the BaTiO3 nanoparticle to make a high dielectric constant polyimide nanocomposite dielectric. Surface of BaTiO3 was modified GPTES to increase the interfacial adhesion. Crosslinked poly(4-vinylphenol) (PVP) used capping layer on polyimide nanocomposite layer. Polyimide nanocomposite bilayer film showed high diele ctric constant (5.58) and low leakage current density (10-7A/cm2) in metal-insulator-metal (MIM) devices. Detailed synthetic routes of polyimide and nanocomposite film fabrication condition will be presented. |
| 저자 |
김경민1, 김윤호2, 안택1
|
| 소속 |
1경성대, 2한국화학(연) |
| 키워드 |
OTFT; gate insulator; high-k; nanocomposite
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| E-Mail |
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