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1550nm激发下Er/Yb共掺杂YNbO磷光体的上转换发光、温度传感特性及激光诱导加热效应

Up-conversion luminescence, temperature sensing properties and laser-induced heating effect of Er/Yb co-doped YNbO phosphors under 1550 nm excitation.

作者信息

Wang Xin, Li Xiangping, Zhong Hua, Xu Sai, Cheng Lihong, Sun Jiashi, Zhang Jinsu, Li Lei, Chen Baojiu

机构信息

College of Science, Dalian Maritime University, Dalian, Liaoning, 116026, PR China.

出版信息

Sci Rep. 2018 Apr 10;8(1):5736. doi: 10.1038/s41598-018-23981-4.

DOI:10.1038/s41598-018-23981-4
PMID:29636498
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5893635/
Abstract

YNbO phosphors with various Er and Yb concentrations were synthesized via a traditional high-temperature solid-state reaction method. Their crystal structure was investigated by means of X-ray diffraction (XRD) and Rietveld refinements, and it was confirmed that the obtained samples exist in monoclinic phase. The Er and Yb concentration-dependent up-conversion (UC) luminescence was studied under 1550 nm excitation. By inspecting the dependence of UC intensity on the laser working current, it was found that four-photon and three-photon population processes were co-existent for generating the green UC emissions in the samples with higher Yb concentrations. In addition, it was observed that the temperature sensing properties of YNbO: Er/Yb phosphors were sensitive to both Er and Yb doping concentrations. Furthermore, based on the obtained temperature response of the UC luminescence phosphors, 1550 nm laser-irradiation-induced thermal effect was studied, and it was discovered that the sample temperature was very sensitive to the doping concentrations of Er and Yb and the excitation power.

摘要

通过传统的高温固态反应法合成了具有不同铒（Er）和镱（Yb）浓度的钇铌酸盐（YNbO）荧光粉。通过X射线衍射（XRD）和Rietveld精修对其晶体结构进行了研究，证实所获得的样品为单斜相。在1550 nm激发下研究了铒和镱浓度依赖的上转换（UC）发光。通过考察UC强度对激光工作电流的依赖性，发现对于具有较高镱浓度的样品，四光子和三光子激发过程共存以产生绿色UC发射。此外，观察到YNbO:Er/Yb荧光粉的温度传感特性对铒和镱的掺杂浓度均敏感。此外，基于所获得的UC发光荧光粉的温度响应，研究了1550 nm激光辐照诱导的热效应，发现样品温度对铒和镱的掺杂浓度以及激发功率非常敏感。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/4c313bc437aa/41598_2018_23981_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/f8806606e175/41598_2018_23981_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/9fc71027e001/41598_2018_23981_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/a0d392073d2f/41598_2018_23981_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/3888fc83e84d/41598_2018_23981_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/475690502cfd/41598_2018_23981_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/3a996c9e793c/41598_2018_23981_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/47fd8f907c29/41598_2018_23981_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/c99124297705/41598_2018_23981_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/76eb310cc924/41598_2018_23981_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/4c313bc437aa/41598_2018_23981_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/f8806606e175/41598_2018_23981_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/9fc71027e001/41598_2018_23981_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/a0d392073d2f/41598_2018_23981_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/3888fc83e84d/41598_2018_23981_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/475690502cfd/41598_2018_23981_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/3a996c9e793c/41598_2018_23981_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/47fd8f907c29/41598_2018_23981_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/c99124297705/41598_2018_23981_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/76eb310cc924/41598_2018_23981_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d37/5893635/4c313bc437aa/41598_2018_23981_Fig10_HTML.jpg

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