Optoelectronics Letters, Volume. 8, Issue 1, 1(2012)

Size influence on the fluorescence decay time of ZnS:Mn2+ nanocrystals

Jing SONG1,*... Gao-feng ZHANG2, Tong-yan XING2, Jian-ping XU2,3, Xiao-song ZHANG2 and Qing-song HUANG2 |Show fewer author(s)
Author Affiliations
  • 1Tianjin Zhonghuan Neolight Technology Co., Ltd, Tianjin 300385, China
  • 2Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Institute of Material Physics,Tianjin University of Technology, Tianjin 300384, China
  • 3Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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    ZnS:Mn2+ nanocrystals (NCs) with particle size from 1.9 nm to 3.2 nm are synthesized via chemical precipitation method with different [S2-]/[Zn2+] ratios. The size??dependent decay for Mn emission exhibits a double exponential behavior. And two lifetime values, in millisecond time domain, can both be shortened with size increasing, which is attributed to enhanced interaction between host and Mn2+ impurity. A molecular structure model is proposed to interpret the tendency of two lifetime components, which is correlated to the number of S vacancy (Vs) defects around Mn2+.

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    SONG Jing, ZHANG Gao-feng, XING Tong-yan, XU Jian-ping, ZHANG Xiao-song, HUANG Qing-song. Size influence on the fluorescence decay time of ZnS:Mn2+ nanocrystals[J]. Optoelectronics Letters, 2012, 8(1): 1

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    Paper Information

    Received: Sep. 9, 2011

    Accepted: --

    Published Online: Jul. 12, 2017

    The Author Email: Jing SONG (songjing@zhneolight.com)

    DOI:10.1007/s11801-012-1123-2

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