A ratiometric optical thermometer based on Bi3+ and Mn4+ co-doped La2MgGeO6 phosphor with high sensitivity and signal discriminability

荧光粉 离子 分析化学(期刊) 发光 荧光 兴奋剂 化学 材料科学 紫外线 光电子学 光学 物理 有机化学 色谱法
作者
Yanling Chen,Liuyan Zhou,Yiming Shen,Lei Lei,Renguang Ye,Liang Chen,Degang Deng,Shiqing Xu
出处
期刊:Journal of Alloys and Compounds [Elsevier BV]
卷期号:887: 161283-161283 被引量:48
标识
DOI:10.1016/j.jallcom.2021.161283
摘要

In order to study the optical temperature sensing characteristics of phosphors with dual emission centers, a series of La2MgGeO6: Bi3+, Mn4+ phosphors were prepared by solid phase method at high temperature. Due to the different thermal responses of Bi3+ and Mn4+ ions, the fluorescence intensity ratio between the double emission centers is expected to be an effective method for temperature sensing. The structural phase and luminescence properties of the samples were characterized by X-ray powder diffraction, field emission scanning electron microscopy, ultraviolet spectrophotometer and fluorescence spectrometer. According to the structure of La2MgGeO6 host, it can be seen that Bi3+ ion can replace La3+ ion and Mn4+ ion can replace Ge4+ ion because the valence state of ions are the same and the ion radius is close. Through the excitation of ultraviolet light, La2MgGeO6: Bi3+, Mn4+ present two emission bands, which correspond to the Bi3+ ions 3P1 → 1S0 transition (emitting blue light) and Mn4+ ions 2Eg → 4A2g transition (emitting red light) respectively. Moreover, there is energy transfer from Bi3+ ions to Mn4+ ions. Based on the different temperature responses of Bi3+ blue emission and Mn4+ red emission, their fluorescence intensity ratio was used to discuss the temperature measurement characteristics. The absolute sensitivity and relative sensitivity of La2MgGeO6: Bi3+, Mn4+ phosphors reached the maximum value of 1.419% K−1 at 473 K and 3.027% K−1 at 383 K in the temperature range of 293–473 K. Therefore, La2MgGeO6: Bi3+, Mn4+ phosphors are excellent materials for optical temperature measurement.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
量子星尘发布了新的文献求助10
1秒前
直率的惜寒完成签到,获得积分10
2秒前
3秒前
爱莉希雅发布了新的文献求助10
4秒前
5秒前
5秒前
6秒前
情怀应助笨笨山芙采纳,获得10
6秒前
小白发布了新的文献求助10
7秒前
8秒前
小二郎应助科研通管家采纳,获得10
8秒前
核桃应助科研通管家采纳,获得10
8秒前
Lucas应助科研通管家采纳,获得10
8秒前
领导范儿应助科研通管家采纳,获得10
8秒前
8秒前
在水一方应助科研通管家采纳,获得10
8秒前
ludov应助科研通管家采纳,获得10
8秒前
JamesPei应助科研通管家采纳,获得10
8秒前
555557发布了新的文献求助10
8秒前
怡然乌应助科研通管家采纳,获得10
8秒前
坦率的匪应助科研通管家采纳,获得10
8秒前
JamesPei应助科研通管家采纳,获得10
8秒前
坦率的匪应助科研通管家采纳,获得10
8秒前
8秒前
9秒前
9秒前
旺仔完成签到,获得积分10
10秒前
10秒前
端庄的萝发布了新的文献求助20
11秒前
YZQ发布了新的文献求助10
13秒前
tao发布了新的文献求助10
13秒前
爱莉希雅完成签到,获得积分10
14秒前
14秒前
15秒前
zhangzhangzhang完成签到,获得积分10
15秒前
欣喜沛芹发布了新的文献求助10
15秒前
ayingjiang发布了新的文献求助30
18秒前
科研通AI5应助坦率白萱采纳,获得10
18秒前
房山季鸟猴完成签到,获得积分10
18秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988868
求助须知:如何正确求助?哪些是违规求助? 3531255
关于积分的说明 11253071
捐赠科研通 3269858
什么是DOI,文献DOI怎么找? 1804822
邀请新用户注册赠送积分活动 881994
科研通“疑难数据库(出版商)”最低求助积分说明 809035