同轴纳米电缆结构发光材料制备与分析方法  

Preparation and Analysis Method for Coaxial Nanocable Structure

作　　者：洪春水 杨雷[2] Hong Chunshui;Yang Lei(Yongzhou Xiangjiang Rare Earths Co.,Ltd.,Yongzhou 426111;College of Materials Science and Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]永州市湘江稀土有限责任公司,湖南永州426111 [2]湖南大学材料科学与工程学院,湖南长沙410082

出　　处：《广东化工》2022年第24期97-99,共3页Guangdong Chemical Industry

基　　金：长沙市科技计划(kq2004023)。

摘　　要：纳米同轴电缆是一种一维纳米结构,因具有特殊的物理化学性能,受到广泛的关注。纳米同轴电缆有多种制备方法,最常见的是分步组装的方法。常见的纳米同轴电缆形貌表征有SEM、TEM等方法。TEM的电子束可以穿透样品成像,不需要剥离掉部分外层,因而分析纳米同轴电缆的形貌时,采用TEM比较方便。HRTEM能够分析纳米同轴电缆的晶体结构,一张HRTEM图片可以同时清楚的观测到芯部与外层材料的晶格条纹。常见的纳米同轴电缆光学性质和掺杂研究的分析方法主要还是光谱分析。可以通过分析发光光谱中发光峰的位置可分裂确定稀土离子的掺杂位置。Nanocoaxial cable is a kind of one-dimensional nanostructure, which has attracted extensive attention because of its special physical and chemical properties. There are many preparation methods for the nanocoaxial cable, and the most common one is the step by step assembly method. SEM and TEM are commonly used to characterize the morphology and shape of nanocoaxial cables. The electron beam of TEM can penetrate the sample without stripping off part of the outer layer, so it is convenient to use TEM to analyze the morphology and shape of nanocoaxial cable. HRTEM is able to analyze the crystal structure of the nanocoaxial cable, and a single HRTEM image can clearly observe the crystal fringe of core and outer material at the same time. The common analysis method to analyze optical properties and doping of nanocoaxial cable is spectroanalysis. The doping position of rare earth ions can be determined by analyzing the position of luminescence peaks.

关 键 词：同轴纳米电缆 分步制备 扫描电镜 透射电镜 光谱分析 

分 类 号：O48[理学—固体物理]