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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.  

Qiang  China  China)  China  China)  Yuan  Key Laboratory of Panicle Astrophysics  Tong-Jie Zhang(Department of Astronomy  Kavli Institute for Theoretical Physics China  Bao-Quan Wang(Department of Physics  Tong-Jie  Zhang  Bao-Quan  Wang（Qiang Yuan(Department of Astronomy  Beijing Normal University  Beijing 100875  Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  Beijing Normal University  Beijing 100875  Institute of Theoretical Physics  Chinese Academy of Sciences (KITPC/ITP-CAS)  Beijing 100080  Dezhou University  Dezhou 253023  China)）  

Xuejuan  Yang  Fangjun  Lu  Wenwu  Tian（Xuejuan Yang(Particle Astrophysics Center  Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  China  Department of Astronomy  Beijing Normal University  Beijing 100875  China) Fangjun Lu(Particle Astrophysics Center  Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  China) Wenwu Tian(National Astronomical Observatories  Chinese Academy of Sciences  20A Datun Road  Chaoyang District  CAS  Beijing 1O0012  China  Department of Physics ＆ Astronomy  University of Calgary  Alberta  Canad T2N 1N4)）  Xuejuan  Yang  Fangjun  Lu  Wenwu  Tian（Xuejuan Yang(Particle Astrophysics Center  Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  China  Department of Astronomy  Beijing Normal University  Beijing 100875  China) Fangjun Lu(Particle Astrophysics Center  Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  China) Wenwu Tian(National Astronomical Observatories  Chinese Academy of Sciences  20A Datun Road  Chaoyang District  CAS  Beijing 1O0012  China  Department of Physics ＆ Astronomy  University of Calgary  Alberta  Canad T2N 1N4)）  

Hao  China  Tong  School of Physics and State Key Laboratory of Nuclear Physics and Technology  Ren-Xin  Xu  Li-Ming  Song（Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  Peking University  Beijing 100871  China）  Hao  China  Tong  School of Physics and State Key Laboratory of Nuclear Physics and Technology  Ren-Xin  Xu  Li-Ming  Song（Institute of High Energy Physics  Chinese Academy of Sciences  Beijing 100049  Peking University  Beijing 100871  China）