게이트 절연막에 사용된 점착층에 대한 영향 = Effect of Adhesion Layer on Gate Insulator

다국어 초록 (Multilingual Abstract)

The electrical performances of organic thin-film transistors (OTFTs) have been improved for the last decade. In this paper, it was demonstrated that the electrical characteristics of the organic thin film transistors (OTFTs) were improved by using polymeric material as adhesion layer on gate insulator. We have investigated OTFTs with polyimide adhesion layer which was fabricated by vapor deposition polymerization (VDP) processing and formed by co-deposition of 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride and 4,4'-oxydianiline. It was found that the OTFTs with adhesion layer showed better electrical characteristics than with bare layer because of good matching between semiconductor and gate insulator. Our devices of performance are field effect mobility of $0.4cm^2/Vs$, threshold voltage of -0.8 V and on-off current ratio of $10^6$. In addition, to improve the electrical characteristics of OTFT, we have reduced the thickness of adhesion layer up to a few nanometrs.

참고문헌 (Reference)

1 "Preparation and pervaporation performance of polyimide composite membrane by vapor deposition and polymerization" 136 : 121-, 1997.

2 "Pentacene-based organic thin-film transistors" 44 : 1325-, 1997.

3 "Organic thin-film transistors based on vapor- deposition polymerized gate insulators" 44 : 652-, 2005.

4 "Organic thin-film transistors based on vapor- deposition polymerized gate insulators" 44 : 652-, 2005.

5 "Organic thin film transistors with field effect mobility" 164-, 1999.

6 "Organic smart pixels" 73 : 142-, 1998.

7 "Materials requirements and fabrication of active matrix arrays of organic thin-film transistors for displays" 16 : 4509-, 2004.

8 "Low-voltage organic transistors with an amorphous molecular gate dielectric" 431 : 963-, 2004.

9 "Integration of vapor deposited polyimide into a multichip module packaging process" 20 : 13-, 1997.

10 "IR studies of polyimides. I. Effects of chemical and physical changes during cure" 27 : 711-, 1989.

11 "All-organic integrated emissive pixels" 162-, 1999.