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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Size-dependent photoluminescent property of hybrid nanoparticlesconsisted with YVO4: Eu3+ andgold 会议论文 17th IUMRS International Conference in Asia (IUMRS-ICA), Qingdao, PEOPLES R CHINA, 2017-01-01 作者:  Zhang, W.;  Yan, Y. L.;  Guo, F. Q.;  Zhong, L. S.;  Wang, J. 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/20 YVO4:Eu3+  gold nanoparticles  size-dependent  photoluminescent properties   Synthesis, Crystal Structure and Photoluminescent Properties of a New Uranium-containing Silicotungstate 会议论文 作者:  Tan, Rongxin;  Cui, Shuxin;  Wang, Hui;  Jiang, Yaping;  Song, Wenzhi 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/05 Polyoxometalate  Uranium  Crystal structure  Photoluminescent properties   Fabrication and photoluminescence of ZnS: Mn2+ nanowires/ZnO quantum dots/SiO2 heterostructure (EI CONFERENCE) 会议论文 Yang J.; Cao J.; Yang L.; Zhang Y.; Wang Y.; Liu X.; Wang D.; Wei M.; Gao M.; Lang J. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 In this paper  we demonstrated the encapsulation of ZnS: Mn2+ nanowires (NWs) and ZnO quantum dots (QDs) with a layer of mesoporous SiO 2 shell for the purpose of integrating dual emission property into one common nanostructure. The average diameter of ZnS: Mn2+ NWs  ZnO QDs  and ZnS: Mn2+ / ZnO@SiO2 heterostructure was about 10 nm  6 nm  and 22 nm  respectively. Within ZnS: Mn2+ / ZnO@SiO 2 nanocomposites  the intensity of the yellow-orange emission contributed by ZnS: Mn2+ NWs and the UV emission contributed by ZnO QDs was three and ten times higher than their individual components  respectively. The fluorescence intensity ratio of the dual emission can be tuned by adjusting the hydrolysis time of tetraethyl orthosilicate. The peak energy of the yellow-orange and UV emission showed blueshift and redshift as increasing the temperature  respectively. The anomalous enhancement of the integrated intensity for the UV emission with the temperature indicated that the high surface state density existing in ZnO QDs can overrun the influence of temperature quenching and even alter the photoluminescent properties. 2010 American Institute of Physics.   Synthesis, morphology and optical properties of SrTiO3:Pr 3+ phosphors (EI CONFERENCE) 会议论文 3rd International Symposium on Functional Materials 2009, ISFM 2009, June 15, 2009 - June 18, 2009, Jinju, Korea, Republic of Fu Z.; Li W.; Kyoung Yang H.; Kee Moon B.; Chun Choi B.; Hyun Jeong J. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 SrTiO3:Pr3+ phosphors with different morphologies were prepared by using high-temperature solid-state reaction  the solvothermal method and sol-gel synthesis. All the products were systematically characterized by powder x-ray diffraction (XRD)  infrared spectroscopy (IR)  scanning electron microscopy (SEM)  photoluminescence (PL) and photoluminescent excitation spectra (PLE). The influence of different synthesis methods on the morphology and optical properties of SrTiO3:Pr3+ was discussed. 2010 The Royal Swedish Academy of Sciences.