高等学校化学学报2011，Vol.32Issue(5)：1037-1042,6.
NaGdF4:Eu3+/AAO薄膜的制备与表征
Preparation and Characterization of NaGdF4: Eu3+/AAO Thin Films
摘要
Abstract
NaGdF4: Eu3+/AAO t hin films were prepared on porous anodic aluminum oxide(AAO) template surface via a hydrothermal process and the effects of preparing method, the amount of NaGdF4: Eu3 + and the annealing temperature were investigated. The crystal structure, morphology and luminescent properties of theas-prepared NaGdF4: Eu3+/AAO thin films were characterized by X-ray powder diffraction(XRD), scanning electron microscopy(SEM) and photoluminescence(PL) spectra. XRD results show that the phase transition of NaGdF4: Eu3+/AAO thin films from the hexagonal phase to the cubic phase occurs at about 500 ℃ in air.SEM images indicate that the preparing method influences obviously the morphology of NaGdF4: Eu3 +/AAO thin films, NaGdF4: Eu3+/AAO thin films with the rectangle morphology were prepared by two-step hydrothermal process, and however the one-step hydrothermal process was employed to prepare NaGdF4: Eu3+/AAO thin films without any special morphology. The amount of NaGdF4: Eu3+ in the solution and the annealing temperature do not obviously affect the morphology of NaGdF4: Eu3+/AAO thin films. PL results show that the characteristic emission of NaGdF4: Eu3+/AAO thin films with hexagonal or cubic NaGdF4 structure is 5Do→7F2 transition of Eu3+.关键词
NaGdF4:Eu3+/薄膜/AAO模板/相变/发光Key words
NaGdF4: Eu3+/ Thin film/ AAO template/ Phase transition/ Luminescence分类
化学化工引用本文复制引用
王萌,杨智,王宇飞,陶冶..NaGdF4:Eu3+/AAO薄膜的制备与表征[J].高等学校化学学报,2011,32(5):1037-1042,6.基金项目
云南省自然科学基金(批准号:2007B201M)资助. （批准号:2007B201M）
