Luminescence characteristics of impurities-activated ZnS nanocrystals prepared in microemulsion with hydrothermal treatment
Luminescence characteristics of impurities-activated ZnS nanocrystals prepared in microemulsion with hydrothermal treatment
复制标题
DOI：
10.1063/1.121906
复制
发表时间：
1998-07
影响因子：
4
通讯作者：
Shijie Xu;S. Chua;B. Liu;L. Gan;C. Chew;G. Xu
中科院分区：
文献类型：
--
作者：
Shijie Xu;S. Chua;B. Liu;L. Gan;C. Chew;G. Xu
采用化学合成法在室温下制备了掺铜、掺Eu、掺锰的硫化锌纳米荧光粉。透射电子显微镜观察表明，硫化锌团簇的尺寸在3-18 nm之间。在室温下观察到掺杂的硫化锌纳米晶具有强而稳定的可见光发射等新的发光特性。这些结果有力地表明，杂质，特别是过渡金属和稀土金属激活的硫化锌纳米团簇形成了一类新的发光材料。
Cu-, Eu-, or Mn-doped ZnS nanocrystalline phosphors were prepared at room temperature using a chemical synthesis method. Transmission electron microscopy observation shows that the size of the ZnS clusters is in the 3–18 nm range. New luminescence characteristics such as strong and stable visible-light emissions with different colors were observed from the doped ZnS nanocrystals at room temperature. These results strongly suggest that impurities, especially transition metals and rare-earth metals-activated ZnS nanoclusters form a new class of luminescent materials.