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White light-emitting diodes (LEDs) are considered the next-generation light source as a consequence of their efficiency, lifetimes, low environmental impact, and absence of mercury, all of which place them at an advantage vis-à-vis incandescent or fluorescent lamps.^1,2 In order to generate white light from LEDs, two strategies are commonly followed. The first involves mixing different red, green, and blue components from LED chips. The second simpler and more widely used strategy is downconverting the emission from a blue or ultraviolet LED to a longer wavelength using phosphor(s). White LEDs with blue-pumped yellow-emitting phosphors have attracted attention due to the easy fabrication, low cost, and high brightness.