光學(xué)溫度傳感材料具有抗電磁干擾能力強和適用極端工作環(huán)境的巨大優(yōu)勢,因此在生物傳感。航空航天以及科學(xué)實驗中顯示出重要應(yīng)用前景。開發(fā)雙模式溫度傳感材料,例如兼具熒光強度和熒光壽命測溫的雙模式熒光溫度傳感,對提高熒光溫度傳感器件的精確度具有重要意義。但是,雙模式熒光溫度傳感往往依賴于兩種不同的發(fā)光中心,將其共摻于同一種材料中會導(dǎo)致由二者能量傳遞引起的發(fā)光猝滅。為了解決這個問題,本論文采用氟氧化物多相玻璃陶瓷體系,分別將具有熒光強度比溫度依賴的Er3+和具有熒光壽命溫度依賴的Cr3+隔離于玻璃陶瓷的MF2（M=Ca,Sr）析晶相和ZnAl2O4析晶相,有效抑制了Er3+和Cr3+之間發(fā)光猝滅,實現(xiàn)了基于Er3+熒光強度比和Cr3+熒光壽命的高性能溫度傳感。首先,采用SiO2-Al2O3-ZnF2-CaF2-ErF3-CrF3體系,通過高溫熔融-急冷成型的方法制備了Er3+/Cr3+共摻的玻璃,并經(jīng)熱處理獲得了含有CaF2和ZhnAl2O4析晶相的多相玻璃陶瓷。X射線衍射（XRD）、透射電子顯微鏡（TEM）和X射線能量散射譜掃描（EDX mapping）研究表明,Er3+和Cr3+分別被選擇性地... 

【文章來源】：浙江大學(xué)浙江省 211工程院校 985工程院校 教育部直屬院校

【文章頁數(shù)】：75 頁

【學(xué)位級別】：碩士

【文章目錄】：
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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