Author/Authors :
Song Wei Lu، نويسنده , , Burtrand I. Lee، نويسنده , , Zhong Lin Wang، نويسنده , , Wusheng Tong، نويسنده , , Brent J Wagner، نويسنده , , Wounjhang Park، نويسنده , , Christopher J. Summers، نويسنده ,
Abstract :
Mn2+-doped ZnS nanoparticles were synthesized by a chemical precipitation method at room temperature. The particle size was estimated to be 2.8 nm from high-resolution transmission electron microscopy (HRTEM) and calculated as 2.6±0.4 nm from peak broadening of the X-ray diffraction (XRD) pattern. A 30-fold increase in photoluminescence intensity has been observed from Mn2+-doped ZnS nanoparticles after surface passivation by a passivating agent with carboxylic functional groups.
Keywords :
nanocrystal , Photoluminescence enhancement , Surface passivation , Mn2+-doped ZnS
