English  |  正體中文  |  简体中文  |  Items with full text/Total items : 6480/11652
Visitors : 20675266      Online Users : 257
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15271

Title: Quasi-Stranski-Krastanow Growth Mode of Self-assembled CdTe Quantum Dots Grown on ZnSe by Molecular Beam Epitaxy
Authors: Yang, C. S.;Lai, Y. J.;Chou, W. C.;Chen, D. S.;Wang, J. S.;Chien, K. F.;Shih, Yu-Tai
Contributors: 物理學系
Keywords: A1. Growth models;A3. Molecular beam epitaxy;A3. Quantum dots;B1. Cadmium compounds;B2. Semiconducting II-VI materials
Date: 2007-04
Issue Date: 2013-01-07T09:25:49Z
Publisher: Elsevier
Abstract: This study investigates the growth mode of highly lattice-mismatch (∼14%) CdTe self-assembled quantum dots grown on a ZnSe buffer-layer by molecular beam epitaxy. Two growth processes were used to prepare the samples. For the group-I samples, Te and Cd sources were alternately used to deposit a CdTe coverage layer of 0.6 to 8.0 mono-layers on a Zn-stabilized ZnSe buffer layer. The growth process of group-II samples was reversed; that is, the Cd beam was supplied first on a Se-stabilized ZnSe buffer layer. The optical spectra, including the power-dependent, time-resolved photoluminescence (PL) and PL excitation measurement, demonstrate a ZnTe-like and a CdSe-like two-dimensional precursor layer (wetting layer) in the group-I and group-II samples, respectively. Following the formation of the precursor layer, three-dimensional highly strained CdTe quantum dots were formed. Accordingly, the growth of CdTe self-assembled quantum-dot structures was attributed to the quasi-Stranski–Krastanow mode.
Relation: Journal of Crystal Growth, 301-302: 301-305
Appears in Collections:[物理學系] 期刊論文

Files in This Item:

File SizeFormat
index.html0KbHTML393View/Open


All items in NCUEIR are protected by copyright, with all rights reserved.

 


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback