含MF 2 : Yb 3+ ，Er 3+ 和ZnAl 2 O 4 ：Cr 3+ 多相玻璃陶瓷的制备与荧光温度传感性能研究

发布时间：2021-01-22 18:35

　　光学温度传感材料具有抗电磁干扰能力强和适用极端工作环境的巨大优势,因此在生物传感。航空航天以及科学实验中显示出重要应用前景。开发双模式温度传感材料,例如兼具荧光强度和荧光寿命测温的双模式荧光温度传感,对提高荧光温度传感器件的精确度具有重要意义。但是,双模式荧光温度传感往往依赖于两种不同的发光中心,将其共掺于同一种材料中会导致由二者能量传递引起的发光猝灭。为了解决这个问题,本论文采用氟氧化物多相玻璃陶瓷体系,分别将具有荧光强度比温度依赖的Er3+和具有荧光寿命温度依赖的Cr3+隔离于玻璃陶瓷的MF2（M=Ca,Sr）析晶相和ZnAl2O4析晶相,有效抑制了Er3+和Cr3+之间发光猝灭,实现了基于Er3+荧光强度比和Cr3+荧光寿命的高性能温度传感。首先,采用SiO2-Al2O3-ZnF2-CaF2-ErF3-CrF3体系,通过高温熔融-急冷成型的方法制备了Er3+/Cr3+共掺的玻璃,并经热处理获得了含有CaF2和ZhnAl2O4析晶相的多相玻璃陶瓷。X射线衍射（XRD）、透射电子显微镜（TEM）和X射线能量散射谱扫描（EDX mapping）研究表明,Er3+和Cr3+分别被选择性地... 

【文章来源】：浙江大学浙江省 211工程院校 985工程院校 教育部直属院校

【文章页数】：75 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
Chapter 1. Introduction
    1.1 Introduction
    1.2 Introduction of Glass and Glass Ceramics
        1.2.1 Formation of Glass Ceramics
        1.2.2 Nucleation and crystal growth
        1.2.3 Properties of Glass Ceramics
    1.3 Spectroscopic properties of lanthanide and transition metal ions as luminescentcenters
3+ ions as luminescent centres">        1.3.1 Spectruscopic propurties of Er³⁺ ions as luminescent centres
3+ ions as luminescent centres">        1.3.2 Spectroscopic properties of Cr³⁺ ions as luminescent centres
    1.4 Fundamental principles of FIR and lifetime based temperature sensing
        1.4.1 Fundamental principles of FIR based optical thermometry
        1.4.2 Fundamental principles of fluorescence lifetime based optical thermometry
    1.5 Research progress in GC based optical thermometric sensors
        1.5.1 FIR-based GC for optical thermometric sensors
        1.5.2 Lifetime-based GC optical thermometric media
        1.5.3 Dual-mode- of fluorescence based GC optical thermometric media
    1.6 Purpose and content of this study
Chapter 2. Experimental Preparation and Characterization
    2.1 Experimental reagents and equipment
        2.1.1 Experimental reagents and specifications
        2.1.2 Experimental instruments and equipment
3+/Yb³⁺/Cr³⁺ glass and glass ceramic">    2.2 Preparation method of Er³⁺/Yb³⁺/Cr³⁺ glass and glass ceramic
    2.3 Characterization of doped fluorescent glass and glass ceramics
        2.3.1 Differential thermal analysis
        2.3.2 Fluorescence spectra
        2.3.3 Fluorescence decay lifetime
        2.3.4 X-ray diffraction analysis
        2.3.5 Transmission electron microscope
2:Er3+ and ZnAl₂O₄:Cr³⁺Nanocrystals for Optical Temperature Sensing">Chapter 3. Multi-phase Glass-ceramics containing CaF₂:Er3+ and ZnAl₂O₄:Cr³⁺Nanocrystals for Optical Temperature Sensing
    3.1 Glass ceramic preparation
        3.1.1 Sample Preparation
    3.2 Glass ceramic phase composition and microstructure
        3.2.1 Phase Identification and Microstructure
    3.3 Spectroscopic behaviors
        3.3.1 Downconversion photoluminescence spectra of the GCs
        3.3.2 Upconversion photoluminescence spectra of the GCs
    3.4 Optical temperature sensing study of the GCs
3+) based temperature sensing">        3.4.1 Lifetime (Cr³⁺) based temperature sensing
3+based temperature sensing">        3.4.2 FIR (Er³⁺based temperature sensing
        3.4.3 High Temperature FIR measurements （280K-500K）
        3.4.4 Low Temperature FIR measurements（12K-300K）
    3.5 Summary of the chapter
2:Yb³⁺/Er3+ and ZnAl₂O₄:Cr³⁺Nanocrystals for Optical Temperature Sensing">Chapter 4. Multi-phase Glass-ceramics containing SrF₂:Yb³⁺/Er3+ and ZnAl₂O₄:Cr³⁺Nanocrystals for Optical Temperature Sensing
    4.1 Glass ceramic preparation
        4.1.1 Sample Preparation
    4.2 Glass ceramic phase composition and microstructure
        4.2.1 Phase Identification and Microstructure
    4.3 Spectroscopic behaviors
        4.3.1 Downconversion photoluminescence spectra of the GCs
        4.3.2 Upconversion photoluminescence spectra of the GCs
    4.4 Optical temperature sensing study of the GCs
3+) based temperature sensing">        4.4.1 Lifetime (Cr³⁺) based temperature sensing
3+) based temperature sensing">        4.4.2 FIR(Er³⁺) based temperature sensing
        4.4.3 High Temperature FIR measurements （298K-498K）
        4.4.4 Low Temperature FIR measurements（12K-275K）
    4.5 Summary of the chapter
Chapter 5. Conclusion and Future Prospects
    5.1 Conclusion
    5.2 Future Prospects
References
Acknowledgements
Resume
Academic papers published during the Degree



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