Synthesis of ZnS:Mn2+ nanocrystals and luminescence properties of LDPE film containing ZnS:Mn2+

The manganese-doped ZnS (ZnS:Mn2+) nanocrystals were prepared by addition of Na2S to an Zinc Oleate and Mn(NO3)(2) solution. It was done using auto-clave method. The aging in auto-clave resulted in Mn2+-doped ZnS particle. The emitting band ZnS:Mn2+ showed red-shift from that of ZnS and results in the emission band at 500 nrn similar to 650 urn (lambda(max) = 575 nm). ZnS:Mn2+ particles dispersed in polymer for production of the green house films. So this film will be used as light wavelength modification materials for the utilization of plant growth acceleration. Luminescence properties of the film were measured by luminescence spectrometer.