用于白光发光二极管照明的Ce/Mn/Cr:(Re,Y)AlO 荧光陶瓷（Re = Gd、Tb和Lu）：显著的光谱红移和改善的显色指数

Ce/Mn/Cr: (Re,Y)AlO Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting Significant Spectral Redshift and Improved Color-Rendering Index.

作者信息

Li Yukun, Hanson Svenja, Pang Cheng Heng, Lyu Peng, Jiang Jun

机构信息

Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Ningbo 315201, China.

Department of Chemical and Environment Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315201, China.

出版信息

Materials (Basel). 2023 Oct 12;16(20):6667. doi: 10.3390/ma16206667.

DOI:10.3390/ma16206667

PMID:37895648

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10608765/

Abstract

In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of YReCe)(Al MnCr)O(Re = 0, Gd, Gd, Gd, Tb, Tb, Tb and Lu were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr and Mn effectively enhanced the red component of Ce spectra through the intense energy transfer from Ce ions to Mn/Cr ions. The crystal field splitting of [GdO] and [TbO] was more extensive than that of [YO], causing a massive redshift in the Ce emission peaks from 542 to 561 and 595 nm, while [LuO] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (GdY)AlO phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.

摘要

为了获得具有高显色指数（CRI）的磷光体陶瓷，通过固态反应和真空烧结制备了组成成分为YReCe)(Al MnCr)O（Re = 0、Gd、Gd、Gd、Tb、Tb、Tb和Lu）的样品，这些样品展现出用于高质量固态照明的潜力。通过从Ce离子到Mn/Cr离子的强烈能量转移，掺杂Cr和Mn有效地增强了Ce光谱的红色成分。[GdO]和[TbO]的晶体场分裂比[YO]更广泛，导致Ce发射峰从542nm大幅红移至561nm和595nm，而[LuO]则产生相反的效果，导致蓝移，峰值位置在512nm。包含Ce/Mn/Cr:(GdY)AlO磷光体陶瓷的白色发光二极管（LED）器件展现出83.97的高显色指数，突出了增强白色LED照明红色光成分的潜力。