半导体学报2009，Vol.30Issue(12)：1-4,4.DOI:10.1088/1674-4926/30/12/122001
Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film
Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film
摘要
Abstract
Periodic disposed quantum dot arrays are very useful for the large scale integration of single electron devices. Gold quantum dot arrays were self-assembled inside pore channels of ordered amino-functionalized mesoporous silica thin films, employing the neutralization reaction between chloroauric acid and amino groups. The diameters of quantum dots are controlled via changing the aperture of pore channels from 2.3 to 8.3 nm, which are characterized by HRTEM, SEM and FT-IR. UV-vis absorption spectra of gold nanoparticle/mesoporous silica composite thin films exhibit a blue shift and intensity drop of the absorption peak as the aperture of mesopores decreases,which represents the energy level change of quantum dot arrays due to the quantum size effect.关键词
gold quantum dot array/ mesoporous silica/ quantum size effect/ single electron deviceKey words
gold quantum dot array/ mesoporous silica/ quantum size effect/ single electron device分类
信息技术与安全科学引用本文复制引用
Chi Yaqing,Zhong Haiqin,Zhang Xueao,Fang Liang,Chang Shengli..Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film[J].半导体学报,2009,30(12):1-4,4.基金项目
Project supported by the National High Technology Research and Development Program of China (No. 2009AA01Z114), the Advanced Research Foundation of National University of Defense Technology (No. JC08-02-08), and the Innovation Program of National University of Defense Technology for Excellent Postgraduate. （No. 2009AA01Z114）
