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新型冰晶石KYF:Er,Yb的制备、结构及上转换发光性能

Preparation, structure and up-conversion luminescence properties of novel cryolite KYF:Er, Yb.

作者信息

Shuai Pengfei, Yang Dan, Liao Libing, Guo Qingfeng, Mei Lefu, Zhang Yidi, Liu Haikun

机构信息

Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences Beijing 100083 China

School of Gemology, China University of Geosciences Beijing 100083 China

出版信息

RSC Adv. 2020 Jan 9;10(3):1658-1665. doi: 10.1039/c9ra10257d. eCollection 2020 Jan 7.

DOI:10.1039/c9ra10257d
PMID:35494668
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9047056/
Abstract

Cryolite is a suitable host for up-conversion luminescent materials due to its low phonon energy and good optical transparency. In this work, a novel up-conversion material KYF:Yb, Er with a cryolite structure was prepared successfully by a solid state method. The crystal structure, morphology, composition and up-conversion luminescence properties of the as-prepared sample were characterized by X-ray diffractometry (XRD), field emission scanning electron microscopy (SEM) and fluorescence spectrometer in detail. KYF:Er, Yb has a cryolite structure. Under 980 nm excitation, the as-prepared sample can generate slight green emission at 524 and 546 nm (attributed to H → I transition, S→I transition of Er) and strong red emission at 661 and 672 nm (corresponding to F → I transition, I → I transition of Er). All the green and red up-conversion emission of KYF:Er, Yb transfer and electronic transition process of the red and green light the sample emitted, the possible luminescence mechanism is discussed in this paper.

摘要

冰晶石因其低声子能量和良好的光学透明度，是一种适合作为上转换发光材料的基质。在本工作中，采用固态法成功制备了一种具有冰晶石结构的新型上转换材料KYF:Yb, Er。通过X射线衍射仪（XRD）、场发射扫描电子显微镜（SEM）和荧光光谱仪对所制备样品的晶体结构、形貌、组成及上转换发光性能进行了详细表征。KYF:Er, Yb具有冰晶石结构。在980 nm激发下，所制备的样品在524和546 nm处可产生微弱的绿色发射（归因于Er的H→I跃迁、S→I跃迁），在661和672 nm处产生较强的红色发射（对应于Er的F→I跃迁、I→I跃迁）。本文讨论了KYF:Er, Yb所有绿色和红色上转换发射以及样品发射的红色和绿色光的转移和电子跃迁过程，探讨了可能的发光机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/4e3c2274780c/c9ra10257d-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/de206fa6f325/c9ra10257d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ffba820f57fd/c9ra10257d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/fa03a979e904/c9ra10257d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ec7bcb43af42/c9ra10257d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ef4358c3bdef/c9ra10257d-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/3a1ca10308b1/c9ra10257d-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/01309ee380f3/c9ra10257d-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/1f21e575e637/c9ra10257d-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/251a20947528/c9ra10257d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/4e3c2274780c/c9ra10257d-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/de206fa6f325/c9ra10257d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ffba820f57fd/c9ra10257d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/fa03a979e904/c9ra10257d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ec7bcb43af42/c9ra10257d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/ef4358c3bdef/c9ra10257d-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/3a1ca10308b1/c9ra10257d-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/01309ee380f3/c9ra10257d-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/1f21e575e637/c9ra10257d-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/251a20947528/c9ra10257d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea7/9047056/4e3c2274780c/c9ra10257d-f10.jpg

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