화학공학소재연구정보센터
학회 한국재료학회
학술대회 2009년 가을 (11/05 ~ 11/06, 포항공과대학교)
권호 15권 2호
발표분야 G. Display (LCD, PDP, OLED) Materials(디스플레이 재료)
제목 Optical and electrical properties of direct-patternable SnO2 films with Pt nanoparticles by photochemical metal-organic deposition
초록 Platinum nanoparticles were synthesized by the methanol reduction method, and their size was controlled to 3 nm on average using PVP [poly(N-vinyl-2-pyrrolidon)] as a protecting unit. Various contents of Pt nanoparticles were incorporated into SnO2 solutions which were synthesized by a sol-gel process. SnO2 films with various contents of Pt nanoparticles were annealed at 500 oC and 600 oC for 1 h. The crystallinity was increased with the annealing temperature and also decreased with incorporation of Pt nanoparticles slightly. The sheet resistance of SnO2 films decreased with the incorporation of Pt nanoparticles however the decreasing behavior was not maintained with increasing contents of Pt nanoparticles. A shift of valence band maximum energy of SnO2 film with Pt nanoparticles to higher energy was also observed due to electron transfer from Pt nanoparticles to SnO2 film. The optical transmittance was 86±2 % in the visible region for all the SnO2 films. Well-defined 60-μm wide direct-patterned SnO2 films containing Pt nanoparticles could be formed without using dry etching process.
저자 최용준, 박형호
소속 연세대
키워드 direct pattern; SnO2; Pt nanoparticles
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