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Spectator electron effects on the two-electron one-photon radiative transition process of double K hole state of Xeq+ ion(47 <= q <= 52) 期刊论文  OAI收割
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2021, 卷号: 259, 页码: 6
作者:  
Ding, Xiaobin;  Wu, Cunqiang;  Zhang, Denghong;  Zhang, Mingwu;  Xue, Yingli
  |  收藏  |  浏览/下载:47/0  |  提交时间:2021/12/13
Two-electron and one-photon transitions in highly charged nickel-like ions 期刊论文  OAI收割
CHINESE PHYSICS B, 2008, 卷号: 17, 页码: 3294-3299
作者:  
Xie Lu-You;  Dong Chen-Zhong;  Jiang Jun;  Wan Jian-Jie;  Yan Jun
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/07/16
Excitonic properties of vertically aligned ZnO nanotubes under high-density excitation (EI CONFERENCE) 会议论文  OAI收割
Lu Y. M.; Liang H. W.; Shen D. Z.; Zhang Z. Z.; Zhang J. Y.; Zhao D. X.; Liu Y. C.; Fan X. W.
收藏  |  浏览/下载:13/0  |  提交时间:2013/03/25
In this paper  highly oriented and vertically arranged ZnO nanotubes are prepared on Al2O3 (0 0 0 1) substrate without employing any metal catalysts by plasma-assisted molecular beam epitaxy. The photoluminescence (PL) spectra at room temperature are studied under high excitation densities. Under lower excitation density (60 kW/cm2)  PL spectrum shows that one strong free exciton emission (FE) locates at 3.306 eV. As the excitation density increases up to 200 kW/cm2  a new emission peak (Pn) located at low-energy side of FE is attributed to the spontaneous emission due to an exciton-exciton (Ex-E x) scattering process from two ground state excitons  where one exciton is recombined by emitting a photon and the other is scattered into the excited states of n=2  3  4.... Under excitation density of 300 kW/cm 2  the stimulated emission originating from Ex-E x scattering is obtained. When the excitation density is above 580 kW/cm2  the emission from electron-hole plasma is observed in low-energy side of the P band and indicates a typical superradiation recombination processes with increasing excitation density. 2006 Elsevier B.V. All rights reserved.