Synthesis and Characterization of ZnS: Fe/ZnS Core-Shell Nanocrystals
ZnS:Fe and ZnS:Fe/ZnS core-shell nanocrystals were synthesized by chemical precipitation method. It was found that the ZnS: Fe based nanocrystals possess zinc blende structure. Compared to ZnS: Fe nanocrystals, the intensity of the X-ray diffraction peaks of ZnS: Fe/ZnS nanocrystals reduced and these peaks moved to lower angles. TEM images show that ZnS: Fe based nanocrystals are spheroidal and the average particles size is about 3~4 run. PL spectra of ZnS: Fe nanocrystals revealed several mission bands, ~406nm, ~444nm, ~416nm, However, PL spectra of ZnS: Fe/ZnS nanocrystals showed several mission bands, ~420nm, ~432nm, ~449nm.
nanocrystals core-shell chemical precipitation photoluminescence spectra
Lihua Li Yongjun Gu Ruishi Xie Jianguo Zhu
College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 47 College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
国际会议
大连
英文
900-903
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）