Fig. 7
Color mixing experiment. a Color mixing experiment setup indicating the red, green, and blue LDs and the yellow nanowireon-quartz device. Inset shows optical photograph of LED under laser illumination. b Change in CCT and CRI with varying LED injection current. c Change in CCT and CRI with varying LD injection current. Wavelength spectrum and CIE 1931 map for a color mixing setup using d a blue LD with yellow nanowire-on-quartz LED and e RGB LDs with yellow nanowire-on-quartz LED