화학공학소재연구정보센터
학회 한국재료학회
학술대회 2011년 가을 (10/27 ~ 10/29, 신라대학교)
권호 17권 2호
발표분야 E. Structural Materials and Processing Technology(구조재료 및 공정기술)
제목 The characterization of ZnO hybrid structure grown by metal-organic chemical vapor deposition
초록 The growth of three-dimensional ZnO hybrid structures by metal-organic chemical vapor deposition was controlled through their growth pressure. Vertically aligned ZnO nanorods were grown on c-plane sapphire substrate at 600℃ and 400 Torr. ZnO film was then formed in-situ on the ZnO nanorods at 600℃ and 10 Torr. High-resolution X-ray diffraction and transmission electron microscopy measurements showed that the ZnO film on the nanorods/sapphire grew epitaxially, and that the ZnO film/nanorods hybrid structures had well-ordered wurtzite structures. The hybrid ZnO structure was shown to be about 5 μm by field-emission scanning electron microscopy. The hybrid structure showed better crystalline quality than mono-layer film on sapphire substrate. Consequently, purpose of this work is developing high quality hybrid epi-growth technology using nano structure. These structures have potential applicability as nanobuilding blocks in nanodevices.
저자 김아영, 장삼석, 이도한, 임소영, 변동진
소속 고려대
키워드 ZnO; Hybrid structure; nanorods; Epitaxial growth; MOCVD
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