文摘
英文文摘
声明
Preface
1 Motivation
2 Statement of project objectives
3 Thesis outline
Chapter one Background
1.1 Nanometer scale and nanomaterials
1.2 Nanoscience and nanotechnology
1.3 Nanoparticles
1.4 Ceramic materials and their properties
1.5 Basic concepts of photoluminescence
1.6 Yttrium Aluminum Garnet (YAG)
1.6.1 Ce-activated YAG
1.6.2 Tb-activated YAG
1.6.3 Eu-activated YAG
1.7 References
Chapter two Techniques used for samples characterization
2.1 Introduction
2.2 X-ray diffraction (XRD)
2.3 Scanning electron microscopy (SEM)
2.3.1 Energy dispersive x-ray (EDX)
2.4 Transmission electron microscopy (TEM)
2.4.1 Selected area electron diffraction (SAED)
2.5 Photoluminescence (PL) spectroscopy
2.6 References
Chapter three YAG:Ce3+ nauo-sized particles prepared by precipitation technique
3.1 Introduction
3.2 Experimental
3.2.1 Synthesis of YAG:Ce by precipitation method
3.2.2 Characterization
3.3 Results and discussion
3.3.1 Crystal structure of the product
3.3.2 PL property of YAG:Ce
3.4 Conclusion
3.5 References
Chapter four Solution combustion synthesis of Tb3+-doped Y3Al5O12 nanoparticles
4.1 Introduction
4.2 Experimental procedures
4.2.1Materials and powder synthesis
4.2.2 Powder characterization
4.3. Results and discussion
4.3.1 Formation process of crystalline YAG:Tb3+ nanoparticles
4.3.2 Photoluminescence properties of YAG:Tb nanoparticles obtained
4.4 Conclusion
4.5 References
Chapter five Synthesis and characterization of single crystalline YAG:Eu nano-sized powder by sol-gel method
5.1 Introduction
5.2 Sample preparation and characterization
5.3 Results and discussion
5.4 Conclusion
5.5 References:
Chapter six Sol-gel preparation and photoluminescence properties of Ce3+- activated Y3Al5O12 nano-sized powders
6.1 Introduction
6.2 Experimental
6.2.1 Materials
6.2.2 Samples synthesis
6.2.3 Samples characterization
6.3 Results and discussion
6.3.1 Crystal structure
6.3.2 Photoluminescence property of YAG:Ce
6.4 Conclusion
6.5 References
Chapter seven Summary of the conclusions and suggestions for future works
7.1 Summary of the conclusions
7.2 Suggestions for future works
Publications
Acknowledgements