[en] Single-phase solid solution of Cd_xZn_1-yMn_yS offers possibility for tuning full color spectrum. A broad emission with FWHM of ∼155 nm leading to a broadband emission can be harvested in a nominal composition such as Cd_0.54Zn_0.43Mn_0.03S by a compounded effect of CdS, ZnS and ZnS:Mn responsible for blue, green and red emission, respectively. Contribution from (i) quantization of energy levels due to nano-dimension, (ii) emission arising from trap (mid-gap) states and (iii) Mn²⁺ spin-forbidden ⁴T₁ → ⁶A₁ transition is responsible for the mechanism of PL in these solid solutions