摘要
Nanostructural zinc oxide films have been synthesized via vapor phase growthby heating pure zinc powder. Scanning electron microscopy ( SEM) images and X-ray diffraction (XRD)results showed that four kinds of morphologies ZnO nanostructures namely nanowires, well-alignednanorods, nanofeathers and hexagonal nano-rods were formed and all of wurtzite structural crystals.The results indicated that the temperature and substrate play an important role in the formation ofdifferent morphologies of ZnO nanostructures. The photoluminescence (PL) measurement was carried outfor the well-aligned nanorods ZnO sample and blue emission peaks at 420 and 444 nm have beenobserved at room temperature. And the blue emission mechanism is discussed.
Nanostructural zinc oxide films have been synthesized via vapor phase growthby heating pure zinc powder. Scanning electron microscopy ( SEM) images and X-ray diffraction (XRD)results showed that four kinds of morphologies ZnO nanostructures namely nanowires, well-alignednanorods, nanofeathers and hexagonal nano-rods were formed and all of wurtzite structural crystals.The results indicated that the temperature and substrate play an important role in the formation ofdifferent morphologies of ZnO nanostructures. The photoluminescence (PL) measurement was carried outfor the well-aligned nanorods ZnO sample and blue emission peaks at 420 and 444 nm have beenobserved at room temperature. And the blue emission mechanism is discussed.
基金
SupportedbytheNationalNaturalScienceFoundationof China(19975035)
