| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Water-Soluble Polymer Dielectric toward High Performance Organic Thin-Film Transistors. |
| 초록 |
In this paper, we have introduced air-stable, water-soluble poly(acrylic acid) as a polymer dielectric material for OTFTs. A poly(acrylic acid) dielectric layer in OTFTs showed good stability in ambient air conditions by using a cross-linker. The device we fabricated with a PAA dielectric layer was found to have mobility of 0.526 cm2/Vs, a threshold voltage of -8.4 V, and an on/off ratio of 9.2x105 at -40 V. Moreover, the performance of an OTFT using cross-linked PAA is superior to that of other commonly used polymer dielectric materials. In expecially, because PAA is compatible with nanoparticles in aqueous solution, we applicated an OTFT using a dielectric layer with mixture cross-linked PAA and nanoparticles having high dielectric constant. This OTFT could be operated succesfully and stably at low voltage bias (source-drain bias, Vd=-5 V). |
| 저자 |
임성희1, 이민정1, 김주희2, 김경준2, 유승철2, 박시윤2, 이지현2, 정성윤2, 한대만2, 윤성수2, 김연상2
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| 소속 |
1이화여자대, 2서울대 |
| 키워드 |
Organic Field-Effect Transistors; Dielectrics; Polymeric Materials; Nanoparticle; Hybrid Materials.
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| E-Mail |
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