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Preparation and Luminescence Properties of Rare Earth Doped Silicate Phosphors for White Light Emitting Diodes

摘要第5-7页
ABSTRACT第7-11页
1 INTRODUCTION第24-55页
    1.1: Lighting (An important field of research for saving of energy)第24-25页
    1.2: The importance of light第25-26页
    1.3: Lighting development history第26-38页
        1.3.1: Incandescent lamp第26-28页
        1.3.2: Fluorescent lamp第28-31页
        1.3.3: Solid state lighting: A breakthrough technology第31-38页
            1.3.3.1: Working principle and short history of a light emitting diode (LEDs)第32-33页
            1.3.3.2: White light production第33-37页
            1.3.3.3: Advantages of solid state lighting (SSL)第37-38页
    1.4: Luminescence Mechanism in phosphors第38-41页
        1.4.1: Absorption of electromagnetic radiations第39页
        1.4.2: Multiplication and thermalisation of e-h pairs第39-40页
        1.4.3: Energy carrier migration第40页
        1.4.4: Luminescence第40-41页
    1.5: Luminescence Characteristics第41-44页
        1.5.1: Significance of crystal field第41-42页
        1.5.2: Influence of the concentration of activators第42页
        1.5.3: Configurationally coordinate model第42-44页
    1.6: Light emission mechanism in rare earth doped phosphors第44-48页
        1.6.1: 4f - 4f transitions第44-46页
        1.6.2: 4f-5d transitions第46-48页
    1.7: General considerations for the search of new phosphors第48-49页
    1.8: Experimental Technique第49-55页
        1.8.1: Crystal growth by solid state reaction第49-51页
        1.8.2: Samples preparation第51-52页
        1.8.3: Phase identifications第52-53页
        1.8.4: Measurements of room temperature photoluminescence第53页
        1.8.5: Fluorescence decay Time第53-54页
        1.8.6: Temperature dependent photoluminescence第54-55页
2 Novel single-phase full-color emitting Ba_9Lu_2Si_6O_(24):Ce~(3+)/Mn~(2+)/Tb~(3+) phosphors第55-74页
    2.1: INTRODUCTION第55-57页
    2.2: MATERIALS AND EXPERIMENTAL PROCEDURE第57-58页
    2.3: RESULTS AND DICUSSION第58-72页
    2.4: CONCLUSIONS第72-74页
3 Synthesis and characterization of Ce~(3+)/Tb~(3+) co-doped CaLa_4Si_3O_(13) phosphors第74-92页
    3.1: INTRODUCTION第75-77页
    3.2: MATERIALS AND EXPERIMENTAL PROCEDURE第77-78页
    3.3: RESULT AND DISCUSSION第78-91页
        3.3.1: Crystalline structure第78-80页
        3.3.2: Emission of singly-doped CaLa_3Si_3O_(13):Ce~(3+) phosphors第80-81页
        3.3.3: Co-doped Ce~(3+)/Tb~(3+) CaLa_3Si_3O_(13) phosphors第81-91页
            3.3.3.1: Photoluminescence properties and energy transfer mechanism第81-88页
            3.3.3.2: Chromaticity properties and tuning第88-89页
            3.3.3.3: Thermal stability第89-91页
    3.4: CONCLUSIONS第91-92页
4 Anomalous Green Light Emitting of Ba_9Lu_2Si_6O_(24):Eu~(2+)Phosphors第92-113页
    4.1: INTRODUCTION第93-96页
    4.2. EXPERIMENTAL PROCEDURE第96-97页
        4.2.1. Materials and synthesis第96-97页
        4.2.2: Characterizations第97页
    4.3: RESULT AND DISCUSSION第97-111页
        4.3.1: Influence of Eu~(2+) doing第97-104页
            4.3.1.1: Crystal structure of BLSO: Eu~(2+)第97-99页
            4.3.1.2: Photoluminescence properties of BLSO: Eu~(2+)第99-103页
            4.3.1.3: CIE color coordinate of BLSO: Eu~(2+)第103-104页
        4.3.2: Influence of Sr~(2+) substitutions on BLSO:0.2Eu~(2+)第104-108页
            4.3.2.1: XRD diffractograms of SBLSO:0.2Eu~(2+)第104-105页
            4.3.2.2: Luminescence properties of SBLSO: Eu~(2+)第105-108页
        4.3.3: Influence of Ge4+ doping第108-110页
            4.3.3.1: Phase purity of BLSGO: Eu~(2+)第108-109页
            4.3.3.2: Photoluminescence spectra of BLSGO: Eu~(2+)第109-110页
        4.3.4: Thermal stability study第110-111页
    4.4: CONCLUSION第111-113页
5 Single-Phase White-Light-Emitting Ca_xBa_((9-x))Lu_2Si_6O_(24): Eu~(2+)/Mn~(2+) Phosphors第113-133页
    5.1: INTRODUCTION第114-117页
    5.2: MATERIALS AND EXPERIMENTAL PROCEDURE第117-118页
    5.3: RESULTS AND DISCUSSION第118-132页
        5.3.1: Crystalline structure第118-120页
        5.3.2 Influence of Ca-substitution on the photoluminescence properties第120-123页
        5.3.3 Ca_(1.5)Ba_(7.5)Lu_2Si_6O_(24):0.12Eu~(2+)/yMn~(2+) phosphors第123-132页
            5.3.3.1: Luminescence properties第123-125页
            5.3.3.2: Energy transfer第125-129页
            5.3.3.3 CIE color coordinates第129-130页
            5.3.3.4: Influence of temperature on photoluminescence properties第130-132页
    5.4 : CONCLUSIONS第132-133页
6 CONCLUSIONS第133-136页
REFERENCE第136-162页
Acknowledgements第162-163页
List of publication第163-164页

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