两步法设计具有高光效指数的单掺杂白光荧光粉。

Two-Step Design of a Single-Doped White Phosphor with High Color Rendering.

机构信息

Institut des Matériaux Jean Rouxel (IMN), Université de Nantes , 2 rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France.

Beijing Municipal Key Lab for Advanced Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing , Beijing 100083, China.

出版信息

J Am Chem Soc. 2017 Feb 1;139(4):1436-1439. doi: 10.1021/jacs.6b12597. Epub 2017 Jan 24.

DOI:10.1021/jacs.6b12597

PMID:28098997

Abstract

A strategy to design step by step an inorganic single-doped white phosphor is demonstrated. The method consists in tuning different contributions of the emission by successively controlling the chemical compositions of the solid solution or nanosegregated host matrix and the oxidation states of the single dopant. We use this approach to design a white phosphor NaCaMgScSiO:Eu with excellent color rendering (CRI > 90) that is similar to common mixed-phosphor light sources but for a single-phase. We show that this methodology can also be extended to other phosphors for use in diverse applications such as biomedicine or telecommunications.

摘要

我们展示了一种逐步设计无机单掺杂白色荧光粉的策略。该方法通过依次控制固溶体或纳米分相宿主基质的化学成分和单掺杂剂的氧化态来调节不同的发射贡献。我们使用这种方法设计了一种具有优异显色指数（CRI>90）的白色荧光粉 NaCaMgScSiO:Eu，其性能类似于常见的混合荧光光源，但为单相。我们表明，这种方法也可以扩展到其他荧光粉，用于生物医学或电信等各种应用。