A lighting device 100 includes a light source 101, a first phosphor layer 102 disposed directly or indirectly on top of the light source 101, a first quantum dots layer 103 disposed directly on top of the first phosphor layer 101, and a second phosphor layer 104 disposed directly on top of the first quantum dots layer 103. The first quantum dots layer 103 includes a population of quantum dots 106 dispersed in a first matrix material 107. Each of the first and second phosphor layers 102, 104 includes a population of conventional phosphor particles 105. Another embodiment is a lighting device 400 that includes a light source 401 and a wavelength-shifting phosphor layer 402 disposed on top of the light source 401. The wavelength-shifting phosphor layer 402 includes a population of quantum dots 404 and a population of phosphor particles 403 both dispersed in a matrix material 405.