Contents
Contributors ix
1 Introduction to electronic spectroscopy of lanthanide, properties, and their applications 1
Vijay B. Pawade, Vibha Chopra, S.J. Dhoble
1.1 Introduction 1
1.2 Electronic structure 2
1.3 Transitions in Ln3+ ions 3
1.4 Selection rules for lanthanide 4
1.5 Properties of lanthanides 5
1.6 Spectroscopic properties of some Ln3+ ions 9
1.7 Energy transfer in Ln3+ ions 12
1.8 Scope of lanthanide ions 16
1.9 Conclusions 17
References 17
Further reading 19
2 Development in the innovation of lead halide-based perovskite quantum dots from rare earth-doped garnet-based phosphors for light-emitting diodes 21
Rajan Kumar Singh, Neha Jain, Pushpendra Singh, Ranveer Kumar,
Jai Singh, Somrita Dutta, Teng-Ming Chen, Sudipta Som, Hendrik C. Swart
2.1 Introduction and background 21
2.2 Elementary knowledge of phosphors and luminescence phenomena 26
2.3 Light-harvesting material requirements and motivation for perovskites 29
2.4 Elementary knowledge of perovskite light-harvesting materials 29
2.5 Synthesis of perovskite nanomaterial 32
2.6 Applications of LLHPs 42
2.7 Conclusion 47
References 49
Further reading 56
3 Luminescent dynamics of rare earth–doped CaTiO3 phosphors 57
Luyanda L. Noto, Sefako J. Mofokeng, Fokotsa V. Molefe,
Hendrik C. Swart, Angelina S. Tebele, Mokhotjwa S. Dhlamini
3.1 Introduction 57
3.2 Crystal structure of CaTiO3 59
3.3 Pr3+-doped CaTiO3 crystal structure 61
3.4 Synthesis of CaTiO3 63
3.5 Spontaneous luminescence of CaTiO3-related phosphors 67
3.6 Applications of CaTiO3 81
3.7 Conclusion 82
Acknowledgments 82
References 82
4 Ln2+, 3+-doped aluminosilicate–based phosphors 87
D.A. Hakeem, Andrzej Suchocki
4.1 Introduction 87
4.2 BaAl2Si2O8 89
4.3 CaSrAl2SiO7 100
4.4 Conclusion 109
References 109
Further reading 112
5 Lanthanide-doped orthometallate phosphors 113
Goutam Singh Ningombam, Nongmaithem Rajmuhon Singh
5.1 Introduction 113
5.2 Synthesis and morphology control 115
5.3 Crystalline properties of orthometallates 134
5.4 Vibrational analysis 138
5.5 Electronic structure 144
5.6 Luminescence studies 152
5.7 Miscellaneous applications 199
5.8 Conclusions 206
References 207
Further reading 234
6 Lanthanide-doped orthovanadate phosphors: Syntheses, structures, and photoluminescence properties 235
Dragana J. Jovanovi_c
6.1 Introduction 235
6.2 Methods of synthesis 237
6.3 Structure and morphology 253
6.4 Spectroscopic studies 257
6.5 Photoluminescent studies 261
6.6 Conclusion 275
Acknowledgments 275
References 275
7 Study of RE ion–doped oxide glass materials for photonic applications 293
B. Naveen Kumar Reddy, S. Sailaja, K. Thyagarajan,
B. Sudhakar Reddy
7.1 Introduction 293
7.2 Experimental 294
7.3 Results and discussion 295
7.4 Conclusions 302
References 303
8 Advanced research on oxynitride phosphors 305
Abhilasha Jain, S.J. Dhoble, D.R. Peshwe
8.1 Introduction 305
8.2 Characteristic features of oxynitride phosphors 306
8.3 Synthesis methods of oxynitride phosphors 307
8.4 Classification of oxynitrides 309
8.5 Conclusion 321
References 323
Further reading 326
9 Highly luminescent ZnO based upconversion thin films grown by sol-gel spin coating 327
Trilok K. Pathak, R.E. Kroon, L.P. Purohit, Hendrik C. Swart
9.1 Introduction 327
9.2 Methodology of thin films deposition 328
9.3 Result and discussion 329
9.4 Conclusions 341
Acknowledgment 342
References 342
10 Luminescence properties of rare-earth doped oxide materials 345
Vinod Kumar, S.P. Tiwari, O.M. Ntwaeaborwa, Hendrik C. Swart
10.1 Introduction 345
10.2 Different oxide hosts with RE doping 346
10.3 Synthesis methods 347
10.4 Applications of oxide-based phosphors 350
10.5 Conclusions 359
Acknowledgment 359
References 359
11 Role of lanthanide substitution on suitable sites in enhancing the properties of various electroceramics 365
Paresh H. Salame, Jayant T. Kolte
11.1 Introduction 365
11.2 Effect of lanthanide (Ln3+) substitution on BaTiO3 ceramics 366
11.3 Effect of lanthanide substitution on bismuth ferrite (BiFeO3) ceramics 376
11.4 Conclusions 389
References 389
12 Rare-earth doping in afterglow oxide phosphors: Materials, persistence mechanisms, and dark vision display applications 393 G. Swati, Vishnu V. Jaiswal, D. Haranath
12.1 Introduction to afterglow phosphors 393
12.2 Conditions for realizing afterglow luminescence 395
12.3 First generation: Sulfide systems 396
12.4 Second generation: Aluminate and silicate systems 402
12.5 Third generation: Alkaline earth titanate systems 415
12.6 Conclusions 420
Acknowledgments 420
References 420
Further reading 425
Index 427