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Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE) 会议论文  OAI收割
Wei Z. P.; Lu Y. M.; Shen D. Z.; Wu C. X.; Zhang Z. Z.; Zhao D. X.; Zhang J. Y.; Fan X. W.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
A set of ZnO/MgZnO heterostructures with well widths  Lw  varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton  while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness  the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.  
Measurements of the cross sections for e(+)e(-)-> hadrons at 3.650, 3.6648, 3.773 GeV and the branching fraction for psi (3770)-> non-D(D)over-bar 期刊论文  OAI收割
PHYSICS LETTERS B, 2006, 卷号: 641, 期号: 2, 页码: 145-155
作者:  
BES Callaboration
收藏  |  浏览/下载:13/0  |  提交时间:2015/12/02
Couplings of pions with excited heavy mesons from light-cone QCD sum rules in the leading order of HQET 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL C, 1999, 卷号: 6, 期号: 2, 页码: 307-311
作者:  
  |  收藏  |  浏览/下载:11/0  |  提交时间:2012/08/29
The K*K pi and rho pi pi couplings in QCD 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL A, 1999, 卷号: 4, 期号: 3, 页码: 277-281
作者:  
Zhu, SL;  Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
  |  收藏  |  浏览/下载:16/0  |  提交时间:2012/08/29
Laser intensity effects in photoemission and photoelectron spectra produced in laser-induced autoionisation 期刊论文  OAI收割
j. phys. b-at. mol. opt. phys., 1989, 卷号: 22, 期号: 13, 页码: 2115, 2127
姚关华; 徐至展
收藏  |  浏览/下载:1212/186  |  提交时间:2009/09/18