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用于白光发光二极管应用的新型铕激活硫代镓酸盐荧光粉：结构与光谱分析

Novel Eu-activated thiogallate phosphors for white LED applications: structural and spectroscopic analysis.

作者信息

Lee Szu-Ping, Chan Ting-Shan, Dutta Somrita, Chen Teng-Ming

机构信息

Phosphors Research Laboratory, Department of Applied Chemistry, National Chiao Tung University Hsinchu 30010 Taiwan

National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan.

出版信息

RSC Adv. 2018 Mar 27;8(21):11725-11730. doi: 10.1039/c8ra01113c. eCollection 2018 Mar 21.

DOI:10.1039/c8ra01113c
PMID:35542794
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9079137/
Abstract

Novel Eu-activated BaGaSiS and BaGaSiS thiogallate phosphors were prepared by solid-state reaction route. The BaGaSiS:Eu phosphor generated a green emission upon excitation at 405 nm, whereas the BaGaSiS:Eu phosphor could be tuned from cyan to green range with increasing Eu concentration upon excitation at 365 nm. Additionally, the thermal luminescence properties of the thiogallate phosphors were investigated in the temperature range of 25 to 250 °C. A warm-white LED is fabricated using the combination of a 405 nm blue InGaN-based LED chip with the green-emitting BaGaSiS:0.01Eu phosphor, and red-emitting SrSiN:Eu commercial phosphor with the CRI value of ∼88 and the CCT of 4213 K.

摘要

采用固相反应法制备了新型铕激活的硫镓酸钡硅（BaGaSiS）和硫镓酸钡硅（BaGaSiS）荧光粉。BaGaSiS:Eu荧光粉在405nm激发下产生绿色发射，而BaGaSiS:Eu荧光粉在365nm激发下随着铕浓度的增加可从青色调至绿色范围。此外，研究了硫镓酸盐荧光粉在25至250°C温度范围内的热发光特性。使用基于405nm蓝色氮化铟镓（InGaN）的发光二极管芯片与发射绿色光的BaGaSiS:0.01Eu荧光粉以及发射红色光的商用SrSiN:Eu荧光粉相结合，制备了显色指数约为88、相关色温为4213K的暖白色发光二极管。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/1287f3e4aa23/c8ra01113c-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/6c358f0d9757/c8ra01113c-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/f1b2c524e5e4/c8ra01113c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/e73f974e1e50/c8ra01113c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/8160ee14c0d6/c8ra01113c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/a478e20edc64/c8ra01113c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/1287f3e4aa23/c8ra01113c-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/6c358f0d9757/c8ra01113c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/90a967ae0c57/c8ra01113c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/ccdc5e13a260/c8ra01113c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/4a8e4af8cff1/c8ra01113c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/f1b2c524e5e4/c8ra01113c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/e73f974e1e50/c8ra01113c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/8160ee14c0d6/c8ra01113c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/a478e20edc64/c8ra01113c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4da1/9079137/1287f3e4aa23/c8ra01113c-f9.jpg

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本文引用的文献

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