附着量子点的TiO_2纳米管的制备  

Synthesis of TiO_2 Nanotube-arrays and Semiconductor QDs-based Composite Structures

作　　者：欧阳慧君 夏思源 江楚天 王超[1] Ouyang Hui-jun;XIAO Si-yuan;JIANG Chu-tian;WANG Chao(Nanjing University of Science and Technology,Nanjing Jiangsu 210094,China)

机构地区：[1]南京理工大学,江苏南京210094

出　　处：《科技视界》2018年第5期86-87,共2页Science & Technology Vision

基　　金：南京理工大学本科生科研训练"百千万"计划(201710288015Y)资助

摘　　要：TiO_2纳米管作为一种新型的纳米材料,因其具有优异的性能和广泛的应用潜能而备受关注。量子点由于量子限域效应而具有许多独特的光、电效应,也是人们研究的焦点。本文先在恒压条件下进行阳极氧化,得到了结构规整的纳米管。在此基础上,再通过电化学沉积法合成了管壁附着PbS量子点的TiO_2纳米管。这种复合材料有望应用在光敏太阳能电池等光电材料及超级电容器的电极材料上。Anodic TiO2 nanotubes,a new type of nanomaterial,have attracted considerable attention due to its extensive functionalities.Semiconductor quantum dots(QDs)are nanometer-sized particles with unique optical and electronic properties.Semiconductor quantum dots are currently under intensive research for a broad range of applications.The anodization was performed at constant voltage at first.After anodization,ordered TiO2 nanotubes were obtained.In this paper,electrical deposition was applied to deposit PbS quantum dots into TiO2 nanotubes.TiO2 nanotube-arrays and semiconductor QDs-based composite structures are promising for potential applications in photoelectrochemical solar cells and supercapacitors.

关 键 词：TIO2纳米管 PbS量子点 阳极氧化 电化学沉积 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O471.1[理学—半导体物理]