YANG Yi, SHEN Dezhen, YU Guangyou, ZHANG Jiying, YANG Baojun, FAN Xiwu. PREPARATION OF COATED CdS/ZnS NANOPARTICLE IN MICROEMULSION AND THEIR OPTICAL PROPERTIES[J]. Chinese Journal of Luminescence, 1999,20(3): 251-253
YANG Yi, SHEN Dezhen, YU Guangyou, ZHANG Jiying, YANG Baojun, FAN Xiwu. PREPARATION OF COATED CdS/ZnS NANOPARTICLE IN MICROEMULSION AND THEIR OPTICAL PROPERTIES[J]. Chinese Journal of Luminescence, 1999,20(3): 251-253DOI:
It is reported in this paper that CdS nanopatricle was synthesized in microemulsion
and the surface of CdS nanoparticle was decorated by depositing a layer of ZnS
then formed CdS/ZnS coated structrue nanoparticle.The size and the coated structure was characterized by absorption-spectra and TEM.The diameter of CdS core is 5nm.The total diameter of CdS/ZnS coated structure is 8~10nm.The blue shift of λ
threshold
and PL peak is caused by quantum size effect.The coating of ZnS can reduce the emission of surface traps of CdS nanoparticle and enhance the emission of band edge and lead it blue shift more.