Nitride Phosphors and Solid-State Lighting  book cover
1st Edition

Nitride Phosphors and Solid-State Lighting

ISBN 9781439830116
Published June 13, 2011 by CRC Press
352 Pages - 16 Color & 226 B/W Illustrations

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Book Description

Nitride Phosphors and Solid-State Lighting provides an in-depth introduction to the crystal chemistry, synthesis, luminescence, and applications of phosphor materials for solid-state lighting, mainly focusing on new nitride phosphors. Drawing on their extensive experimental work, the authors offer a multidisciplinary study of phosphor materials that encompasses materials science, inorganic chemistry, solid-state chemistry, solid-state physics, optical spectroscopy, crystal field theory, and computational materials science.

The book begins with an introduction to the principles, semiconductor/phosphor materials, and characterizations of solid-state lighting and white light-emitting diodes (LEDs). It then discusses the optical and luminescence processes occurring in optically active centers of solid materials and presents the photoluminescence properties of traditional phosphors for white LEDs, including garnets, aluminates, silicates, sulfides, oxysulfides, phosphates, and scheelites.

The remainder of the text focuses on newly developed nitride phosphors. The authors describe the crystal chemistry of general nitride compounds, the crystal structure and photoluminescence properties of new nitride phosphors, and synthetic methods for preparing nitride phosphors. They detail the structural analysis of nitride phosphors and present experimental and computational results of typical nitride phosphors. The authors also examine key issues, such as excitation and emission spectra, thermal quenching, and quantum efficiency. The final chapter explores applications of nitride phosphors in white LEDs for general lighting and LCD backlight purposes.

Covering novel luminescent materials, this book brings you up to date on the evolving field of solid-state lighting. It illustrates the fundamentals, synthesis, properties, and applications of the latest nitride phosphor materials.

Table of Contents

Introduction to Solid-State Lighting
Basics of Solid-State Lighting
Basics of White Light-Emitting Diodes (LEDs)
Applications of Solid-State Lighting

Introduction to Luminescence
Classification of Optical Processes
Fundamentals of Luminescence
Luminescent Centers
Measurement of Luminescence

Traditional Phosphors in White LEDs
Requirements for Phosphors in White LEDs
Classification of Phosphors
Photoluminescent Properties of Traditional Phosphors

Nitride Phosphors in White LEDs
Classification and Crystal Chemistry of Nitride Compounds
Nitride Phosphors
Tunable Luminescence of Nitride Phosphors
Synthesis of Nitride Phosphors

Structural Analysis of Nitride Phosphors
X-Ray Diffraction and Rietveld Refinement
Electron Microscopy Observations
XANES/EXAFS Techniques
First-Principles Calculations
Molecular Orbital (MO) Cluster Calculations

Some Key Issues in Understanding Nitride Phosphors
Absorption and Luminescence Transitions at Long Wavelength
Quantum Efficiency and Thermal Quenching
Effects of Lattice Imperfections on Luminescence Properties

Applications of Nitride Phosphors in White LEDs
White LEDs for Lighting/General Lighting
White LEDs for LCD Backlights


References appear at the end of each chapter.

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Rong-Jun Xie is a senior researcher at the National Institute for Materials Science in Japan. His research interests include nitride phosphor materials for solid state lighting, optical ceramics, and sintering of ceramics.

Yuan Qiang Li is a senior phosphor scientist at Lightscape Materials, Inc. in the United States. He was previously a professor at Nanjing University of Technology in China.

Naoto Hirosaki is a group leader at the National Institute for Materials Science in Japan. He has published more than 230 papers in the areas of non-oxide ceramics and nitride phosphor materials.

Hajime Yamamoto is a professor emeritus at the Tokyo University of Technology. He is also the president of the Phosphor Research Society of Japan.