Quantum dot phosphors CaS:Ce&lt;sup&gt;3+&lt;/sup&gt; and CaS:Pb&lt;sup&gt;2+&lt;/sup&gt;, Mn&lt;sup&gt;2+&lt;/sup&gt; for improvements of white light-emitting diodes optic characteristics
International Journal of Power Electronics and Drive Systems/International Journal of Electrical and Computer Engineering