Triple-layer remote phosphor structure: a selection of the higher color quality and lumen efficiency for WLEDs

To enhance color quality of glass-based phosphor-converted white light-emitting diodes (pc-WLEDs) with multi-layer remote phosphor layer structures, two phosphors, green CdS:In and red ZnS:Te,Mn, are integrated into the glass matrix applied to dual-layer triple-layer WLED packages. The attained results were examined Mie-scattering theory Lambert-Beer law. showed significant enhancement in rendering index (CRI), range approximate 80-90. Meanwhile, CRI was lower stayed around 66. In terms scale (CQS), a more overall evaluating index, structure helps achieve higher value than dual-layer. is also beneficial luminous efficacy, according experimented results. Thus, can be used strengthen benefit products.