A method of making an inorganic light emitting layer includes combining a solvent for semiconductor nanoparticle growth, a solution of core/shell quantum dots, and semiconductor nanoparticle precursor(s); growing semiconductor nanoparticles to form a crude solution of core/shell quantum dots, semiconductor nanoparticles, and semiconductor nanoparticles that are connected to the core/shell quantum dots; forming a single colloidal dispersion of core/shell quantum dots, semiconductor nanoparticles, and semiconductor nanoparticles that are connected to the core/shell quantum dots; depositing the colloidal dispersion to form a film; and annealing the film to form the inorganic light emitting layer.