산화아연 나노구조의 탄소나노튜브와의 혼성구조 형성 특성 연구 (Parametric Characterization of Zinc Oxide Nanostructures Forming Three-Dimensional Hybrid Nanoarchitectures on Carbon Nanotube Constructs)
- Journal
- 대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- Vol. (No.), pp. (Year)
- 39 (6), 541-548 (Jun 2015)
- Category
- Domestic
We study the structural and functional characteristics of zinc oxide (ZnO) nanostructures that are grown on carbon nanotube (CNT) constructs via step-wise chemical vapor deposition (CVD). First, we optimize the CVD process to directly grow ZnO nanostructures on CNTs by controlling the growth temperature below 600 °C, where CNTs can be sustained in a ZnO-growing oxidative atmosphere. We then investigate how the morphology and areal density of ZnO nanostructures evolve depending on process parameters, such as pressure, temperature, and gas feeding composition, while focusing on the effect of underlying CNT topology on ZnO nucleation and growth. Because various types of ZnO nanostructures, including nanowires, nanorods, nanoplates, and polycrystalline nanocrystals, can be conformally formed on highly conductive CNT platforms, this electrically addressable three-dimensional hybrid nanoarchitecture may better meet a wide range of nanoelectronic application?specific needs.