中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Interactions between the Jet and Disk Wind in Nearby Radio-intermediate Quasar III Zw 2 期刊论文  OAI收割
The Astrophysical Journal, 2023, 卷号: 944, 期号: 2, 页码: 187
作者:  
Wang,Ailing;  An,Tao;  Guo,Shaoguang;  Mohan,Prashanth;  Chamani,Wara
  |  收藏  |  浏览/下载:1/0  |  提交时间:2024/05/23
A first principles study of the energetics and core level shifts of anion-doped TiO2 photocatalysts 期刊论文  OAI收割
chinese journal of catalysis, 2015, 卷号: 36, 期号: 2, 页码: 181-187
作者:  
Ding, Wuchen;  Li, Weixue
收藏  |  浏览/下载:34/0  |  提交时间:2015/11/17
Optical characterization of bare CdSe and CdSe/CdS core/shell nanocrystals (EI CONFERENCE) 会议论文  OAI收割
ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Liu L.;  Yu B.;  Liu L.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Thiol-capped CdSe/CdS core/shell nanocrystals (NCs) which show high luminescence quantum yield are synthesized in an aqueous solution. UV-Vis absorption spectroscopy and photoluminescence (PL) spectroscopy are employed to analyze optical characters and stabilities of NCs. Furthermore  PL properties are studied in a temperature range between 77K and 300K. The PL peak position of bare CdSe NCs shifts toward shorter wavelengths and the band becomes sharper with decreasing temperature. On the same condition  the PL peak position of CdSe/CdS core/shell NCs keeps unconverted nearly with the variation of temperature. Photostability of bare CdSe NCs and CdSe/CdS core/shell NCs are compared under the 325nm laser irradiation. It takes 78 seconds that the PL intensity declines to the half for CdSe NCs  but 442 seconds for CdSe/CdS core/shell NCs. The fluorescence decay lifetime increases about six times after overcoating. The results indicate that the CdS shell can improve the low temperature PL stability and photostability of CdSe NCs effectively.  
Simulation calculations of surface segregation for Au-Cu alloys using an analytic embedded atom model 期刊论文  OAI收割
Physica Status Solidi a-Applications and Materials Science, 2005, 卷号: 202, 期号: 14, 页码: 2686-2699
B. W. Zhang; E. Taglauer; X. L. Shu; W. Y. Hu; H. Q. Deng
收藏  |  浏览/下载:30/0  |  提交时间:2012/04/14