Upconversion Nanophosphors

Upconversion Nanophosphors

1st Edition - November 4, 2021

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  • Editors: Sabu Thomas, Kanchan Upadhyay, Raunak Kumar Tamrakar, Nandakumar Kalarikkal
  • eBook ISBN: 9780128228432
  • Paperback ISBN: 9780128228425

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Upconversion Nanophosphors provides detailed information about various lanthanide-based upconversion nanoparticles and their application in different fields. It will also help solve fundamental and applied problems of inorganic phosphor materials showing upconversion behavior, as well as generate innovative ideas related to the application of inorganic phosphor materials. This book will prove to be an invaluable reference work for scientists, engineers, industrial experts, and masters and PhD students working in the field of upconversion and materials science.

Key Features

  • Covers the synthesis and characterization of upconversion nanophosphors and their applications
  • Highlights which classes of upconversion materials are suitable for a specific application
  • Explores processes to engineer upconversion nanoparticles for state-of-the-art technologies, including upconversion labelling and counterfeiting, highly sensitive and selective biosensing, and upconversion-activated drug delivery


Scientists, engineers, industrial experts, masters and PhD students in the field of materials science and composites technology. Graduate students in the disciplines of chemistry, physics, materials science, nanoscience, and nanotechnology.

Table of Contents

  • Cover Image
  • Title Page
  • Copyright
  • Table of Contents
  • Contributors
  • Chapter 1 Photoluminescent rare-earth nanocrystal-based characterization methods: Advancements in photophysical applications
  • Abstract
  • 1.1 Introduction
  • 1.2 Diffused reflectance spectroscopy
  • 1.3 Photoluminescence spectroscopy
  • 1.4 Down-conversion
  • 1.5 A mechanism of down-conversion
  • 1.6 Upconversion
  • 1.7 Photoluminescence quantum yield
  • 1.8 Challenges and future perspectives
  • References
  • Chapter 2 What are upconversion nanophosphors: Basic concepts and mechanisms
  • Abstract
  • 2.1 Introduction
  • 2.2 Fundamental concepts of photon upconversion
  • 2.3 Upconversion mechanisms
  • 2.4 Excited-state dynamics
  • 2.5 Basic understanding of photophysics
  • 2.6 Applications
  • 2.7 Conclusions
  • References
  • Chapter 3 Physics of inorganic upconverting nanophosphors and their relevance in applications
  • Abstract
  • 3.1 Introduction
  • 3.2 Inorganic phosphors: Hosts and dopants
  • 3.3 Building-block ion-ion interaction mechanisms
  • 3.4 Upconversion: Fundamentals and dynamics
  • 3.5 Nanoupconverters
  • 3.6 Conclusions
  • References
  • Chapter 4 Upconversion photoluminescence properties of ZrO2: Ln3+/Yb3+ (Ln = Er, Ho, Tm) films formed by plasma electrolytic oxidation
  • Abstract
  • 4.1 Introduction
  • 4.2 Experimental section
  • 4.3 Results and discussion
  • 4.4 Conclusions
  • References
  • Chapter 5 Synthesis and characterization of upconversion-luminescent fluorosilicate glasses and glass ceramics
  • Abstract
  • 5.1 Introduction
  • 5.2 Fabrication of fluorosilicate glass and glass ceramics with three different fluoride nanocrystals
  • 5.3 Enhanced upconversion emission from Yb3+-Er3+ co-doped fluorosilicate glass
  • 5.4 Blue upconversion emission from Yb3+ doped glass ceramics
  • 5.5 Multicolor upconversion emission form Yb3+-Mn2+ co-doped glass ceramics
  • 5.6 Summary
  • References
  • Chapter 6 Oxide-based upconversion nanophosphors: Synthesis, characterization, and applications
  • Abstract
  • 6.1 Introduction
  • 6.2 Synthesis of oxide nanophosphors
  • 6.3 Structural and morphological studies of oxide nanophosphors
  • 6.4 Optical properties of oxide nanophosphors
  • 6.5 Electroluminescence studies of oxide nanophosphors
  • 6.6 Conclusions
  • References
  • Chapter 7 Upconversion luminescence and optical behavior of Er3+ -doped Gd2O3 phosphors
  • Abstract
  • 7.1 Introduction
  • 7.2 Experimental section
  • 7.3 Results and discussion
  • 7.4 Conclusions
  • Conflict of interest
  • References
  • Chapter 8 Ceramic-based upconversion phosphors
  • Abstract
  • 8.1 Introduction
  • 8.2 Synthesis methods for ceramic-based phosphors
  • 8.3 Characterization techniques: Experimental and theoretical approaches
  • 8.4 Applications
  • References
  • Chapter 9 Organic complexes as upconversion phosphors
  • Abstract
  • 9.1 Introduction
  • 9.2 Two-photon absorption upconversion
  • 9.3 Triplet–triplet annihilation upconversion
  • References
  • Chapter 10 Tuning and optimization of upconversion phosphors
  • Abstract
  • 10.1 Lanthanide dopants and ionic interactions
  • 10.2 Host materials and crystal field
  • 10.3 Core-shell nanostructure engineering
  • 10.4 Surface plasmon resonance-tuned upconversion
  • 10.5 Dye-sensitized upconversion
  • 10.6 Other methods
  • 10.7 Summary
  • References
  • Chapter 11 Application of upconversion-luminescent materials in ­temperature sensors
  • Abstract
  • 11.1 Introduction
  • 11.2 The process of upconversion
  • 11.3 Upconversion luminescence
  • 11.4 Temperature sensor based on fluorescence intensity
  • 11.5 Temperature sensor based on single fluorescence emission intensity
  • 11.6 Temperature sensor based on fluorescence intensity ratio
  • 11.7 For Yb/Er co-doped matrices
  • 11.8 For Yb/Tm co-doped matrices
  • 11.9 For Yb/Ho co-doped matrices
  • 11.10 Temperature sensor based on the fluorescence decay lifetime
  • References
  • Chapter 12 Upconversion nanoparticles for sensing applications
  • Abstract
  • 12.1 Introduction
  • 12.2 Mechanism of upconversion luminescence
  • 12.3 Modification of upconverting nanoparticles’ surfaces for sensing applications
  • 12.4 Upconverting nanoparticles in sensing applications
  • 12.5 Conclusions and perspectives
  • References
  • Chapter 13 Upconversion-luminescent nanomaterials for biomedical applications
  • Abstract
  • 13.1 Introduction
  • 13.2 Lanthanide upconversions: A bioimaging probe
  • 13.3 Lanthanide upconversion-based nanomaterials for therapies
  • 13.4 Summary and future perspectives
  • 13.5 Acknowledgements
  • List of abbreviations
  • References
  • Chapter 14 Application of upconversion-luminescent materials in ­photodynamic therapy
  • Abstract
  • 14.1 Upconversion-luminescent materials
  • 14.2 Cancer treatment
  • 14.3 Upconversion-luminescent materials in cancer treatment
  • References
  • Chapter 15 Upconversion nanomaterials for photocatalytic applications
  • Abstract
  • 15.1 Introduction
  • 15.2 Basic concepts of photocatalysis
  • 15.3 Upconversion nanomaterial-based photocatalysts
  • 15.4 Summary and future perspectives
  • Acknowledgments
  • References
  • Index

Product details

  • No. of pages: 424
  • Language: English
  • Copyright: © Elsevier 2021
  • Published: November 4, 2021
  • Imprint: Elsevier
  • eBook ISBN: 9780128228432
  • Paperback ISBN: 9780128228425

About the Editors

Sabu Thomas

Prof. Sabu Thomas is a renowned professor who is serving as the Vice-Chancellor of Mahatma Gandhi University, Kerala, India. He is also a full professor of Polymer Science and Engineering at the School of Chemical Sciences, a role which he has held since 1998. He was previously Pro-Vice Chancellor of Mahatma Gandhi University 2017-2018, Director of School of Chemical Science during 2010-2013, Hon. Director of International & Inter-University Centre for Nanoscience and Nanotechnology 2009-2015 and 2016-17. In 2015, Prof. Thomas received his first Docteur Honoris Causa from University of Souther Brittany in Lorient, France. In 2016, he received his second Doctorate honoris causa from University of Lorraine, France. He was awarded the Fellow of the Royal Society of Chemistry, London, FRSC in 2012. He received the Bronze Medal of the Chemical Research Society of India and the MRSI Medal of the Material Research Society of India in 2013. He was the recipient of Fulbright-Nehru International Education Administrators Award 2017. He also received TRiLA Academician of the year 2018 award. Prof. Thomas has published more than 1000 publications, and more than 100 books.

Affiliations and Expertise

Full Professor, International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India

Kanchan Upadhyay

Kanchan Upadhyay is a Post-doc Fellow at the International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University. She obtained her PhD in Chemistry at Pt. Ravishankar Shukla University and received the Govt. Chhattisgarh Young Scientist Award in 2015. Her research interests are analytical chemistry and synthesis and luminescence properties of phosphors.

Affiliations and Expertise

International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India

Raunak Kumar Tamrakar

Raunak Kumar Tamrakar is an Assistant Professor for the Department of Applied Physics at the Bhilai Institute of Technology. He obtained a PhD in Solid State Physics at Pt. Ravishankar Shukla University in 2016 and is a lifetime member of the Luminescence Society of India. His main research interests are synthesis and luminescence properties of phosphors.

Affiliations and Expertise

Department of Applied Physics, Bhilai Institute of Technology, Durg, Chhattisgarh, India

Nandakumar Kalarikkal

Dr. Nandakumar Kalarikkal is an Associate Professor at the School of Pure and Applied Physics and Joint Director of the International and Inter University Centre for Nanoscience and Nanotechnology of Mahatma Gandhi University, Kottayam, Kerala, India. His research activities involve applications of nanostructured materials, laser plasma, and phase transitions. He is the recipient of research fellowships and associateships from prestigious government organizations such as the Department of Science and Technology and Council of Scientific and Industrial Research of the Government of India. He has active collaborations with national and international scientific institutions in India, South Africa, Slovenia, Canada, France, Germany, Malaysia, Australia, and the United States. He has more than 130 publications in peer-reviewed journals. He also co-edited nine books of scientific interest and co-authored many book chapters.

Affiliations and Expertise

International and Inter University Centre for Nanoscience and Nanotechnology and School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, Kerala, India

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