机构

• 深圳先进技术研究院 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [2]

发表日期

• 2013 [1]
• 2010 [1]

学科主题

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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 内容类型：会议论文     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Preparation and Characterization of Carbon Nanotube@SiO2 Core-Shell Nanoparticles 会议论文  OAI收割 2013 14th International Conference on Electronic Packaging Technology, ICEPT 2013, Dalian, China 作者:  Zeng Xiaoliang;  Yu Shuhui;  Sun Rong;  Xu Jianbin 收藏  |  浏览/下载：11/0  |  提交时间：2015/08/27 Fabrication and photoluminescence of ZnS: Mn2+ nanowires/ZnO quantum dots/SiO2 heterostructure (EI CONFERENCE) 会议论文  OAI收割 作者:  Yang L.;  Wang D.;  Wang Y.;  Wang Y.;  Wang Y. 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.