Room temperature synthesis of Mn2+ doped ZnS d-dots and observation of tunable dual emission: Effects of doping concentration, temperature, and ultraviolet light illuminationA. K. Kole, C. S. Tiwary, P. Kumbhakar
- Journal of Applied Physics, January 2013, American Institute of Physics
- DOI: 10.1063/1.4795779
Optimization of Mn2+ doping in ZnS QDs for enhanced photoluminesence
What is it about?
Mn2+ doped ZnS quantum dots (MnZnSQDs) have been synthesized in water medium by using an environment friendly low cost technique. Tunable dual emission in UV and yellow-orange regions is achieved. The optimum doping concentration for achieving efficient photoluminescence (PL) emission is determined to be ~1.10 (at. %). From temperature dependent PL data it has been reported, for the first time, that the non-radiative/radiative recombination rate is temperature dependent in MnZnSQDs.