화학공학소재연구정보센터
학회 한국재료학회
학술대회 2007년 봄 (05/10 ~ 05/11, 무주리조트)
권호 13권 1호
발표분야 전자재료
제목 Heat treatment effects on the electrical properties of Y-junction single-walled carbon nanotubes
초록 We have investigated the effects of heat treatment on the electrical properties of Y-junction single-walled carbon nanotubes (SWCNTs) which are synthesized by thermal chemical vapor deposition. Mo doped Fe nanoparticles supported by aluminum oxide are used as a catalyst to grow the Y-junction SWCNTs. Y-junction SWCNTs are characterized by Scanning Electron Microscopy (SEM) and Raman spectroscopy. Annealing conditions are systematically varied from room temperature to 1100℃ in N2 atmosphere to improve the properties of Y-junction SWCNTs. The annealed Y-junction SWCNTs are dispersed in ethanol solution and dripped on patterned device with electrode. The Y-junction SWCNTs with metal electrodes are fabricated using electron beam lithography with PMMA resist and lift off technique. It is found out that the properly annealed Y-junction SWCNTs shows the improved electrical properties compared with those of as-grown samples.
저자 이지수1, 노경석2, 황숙현1, 이수연2, 문준희1, 이수경2, 김금채1, 황보수정2, 김도현1, 임재영2, 전민현1, Wonbong Choi2, Jun Huang1
소속 1인제대, 2Center for nano manufacturing
키워드 Y-juncting single walled carbon nanotubes; annealing; electrical property
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