A single Eu²⁺-activated high-color-rendering oxychloride white-light phosphor for white-light-emitting diodes.

ABSTRACT: Single-phased, high-color-rendering index (CRI) white-light phosphors are emerging as potential phosphor-converted white-light-emitting diodes (WLEDs) and as an alternative to blends of tricolor phosphors. However, it is a challenge to create a high CRI white light from a single-doped activator. Here, we present a high CRI (Ra = 91) white-light phosphor, Sr₅(PO₄)_3-x(BO₃)_xCl:Eu²⁺, composed of Sr₅(PO₄)₃Cl as the beginning member and Sr₅(BO₃)₃Cl as the end member. This work utilized the solid-solution method, and tunable Eu²⁺ emission was achieved. Color-tunable Eu²⁺ emissions in response to structural variation were observed in Sr₅

SUBMITTER: Dai PP 

PROVIDER: S-EPMC6062429 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature