中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共12条,第1-10条 帮助

条数/页: 排序方式:
Degradation mechanisms of optoelectric properties of GaN via highly-charged Bi-209(33+) ions irradiation 期刊论文  OAI收割
APPLIED SURFACE SCIENCE, 2018, 卷号: 440, 页码: 814-820
作者:  
Xian, Y. Q.;  Zhang, L. Q.;  Li, J. Y.;  Su, C. H.;  Chen, Y. G.
  |  收藏  |  浏览/下载:44/0  |  提交时间:2018/05/22
Influence of highly-charged Bi-209(33+) irradiation on structure and optoelectric characteristics of GaN epilayer 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2017, 卷号: 406, 页码: 571-577
作者:  
Li, Jj.;  Zhang, C. H.;  Zhang, L. Q.;  Song, Y.;  Yan, T. X.
  |  收藏  |  浏览/下载:11/0  |  提交时间:2018/05/08
Influence of highly-charged Bi-209(33+) irradiation on structure and optoelectric characteristics of GaN epilayer 会议论文  OAI收割
作者:  
Song, Y.;  Zhang, L. Q.;  Zhang, C. H.;  Xu, C. L.;  Li, Jj.
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/08/20
Influence of highly-charged Bi-209(33+) irradiation on structure and optoelectric characteristics of GaN epilayer 会议论文  OAI收割
作者:  
Yang, Y. T.;  Li, J. Y.;  Liu, H. P.;  Ding, Z. N.;  Yan, T. X.
  |  收藏  |  浏览/下载:20/0  |  提交时间:2018/08/20
Optical investigation of InAs/InP(100) quantum dots grown by gas source molecular beam epitaxy 期刊论文  OAI收割
INFRARED PHYSICS & TECHNOLOGY, 2012, 卷号: 55, 期号: 41308, 页码: 205-209
Li, SG; Gong, Q; Cao, CF; Wang, XZ; Yue, L; Liu, QB; Wang, HL; Wang, Y
收藏  |  浏览/下载:86/0  |  提交时间:2013/04/17
Structural and photoluminescence properties of aligned Sb-doped ZnO nanocolumns synthesized by the hydrothermal method (EI CONFERENCE) 会议论文  OAI收割
作者:  
Wang X.;  Wang X.;  Wang X.;  Li B.;  Li B.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Synthesis and characteristics of zno-cnts nanocomposites 期刊论文  iSwitch采集
Acta physico-chimica sinica, 2006, 卷号: 22, 期号: 10, 页码: 1175-1180
作者:  
Zhu Lu-Ping;  Huang Wen-Yu;  Ma Li-Li;  Fu Shao-Yun;  Yu Ying
收藏  |  浏览/下载:17/0  |  提交时间:2019/05/10
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:27/0  |  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.  
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.  
Optical properties of gan grown on si(111) substrates by mocvd 期刊论文  iSwitch采集
International journal of modern physics b, 2005, 卷号: 19, 期号: 15-17, 页码: 2610-2615
作者:  
Zhang, BS;  Wang, JF;  Wang, Y;  Zhu, JJ;  Yang, H
收藏  |  浏览/下载:21/0  |  提交时间:2019/05/12