Cathodoluminescence and Photoluminescence: Theories and Practical Applications, 1st Edition (Hardback) book cover

Cathodoluminescence and Photoluminescence

Theories and Practical Applications, 1st Edition

By Lyuji Ozawa

CRC Press

168 pages | 89 B/W Illus.

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Hardback: 9781420052701
pub: 2007-05-07
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Description

Written by a senior industry expert with nearly 40 years of hands-on experience, Cathodoluminescence and Photoluminescence: Theories and Practical Applications presents a thorough review of advances, challenges, and recommendations for improving photoluminescent (PL) and cathodoluminescent (CL) phosphor display devices in terms of energy efficiency, image quality, color fidelity, operational lifetime, and production cost.

This book traces the development of cathode ray tubes (CRTs), PL and CL phosphor screens, and fluorescent lamps (FL) into modern phosphor display devices. The author relates luminescence phenomena and color to chemical composition, excitation mechanisms, energy conversion efficiencies, and bulk properties of phosphor particles. He also addresses image quality issues such as flickering, smearing, whitening, and contrast. Subsequent chapters focus on powder deposition techniques and the production of phosphor powders themselves. The text describes the necessary raw materials, flux materials, and growth conditions for producing ZnS powders. It provides a quantitative analysis on optimal processes and parameters for ensuring higher quality color and screen resolution.

Offering a detailed guide for next-generation scientists and engineers in the field, Cathodoluminescence and Photoluminescence describes current technologies and promising developments for producing higher quality, energy-efficient, and long-lasting phosphor CR and flat CL screen displays.

Table of Contents

INTRODUCTION

LUMINESCENT PROPERTIES GENERATED IN PHOSPHOR PARTICLES

Excitation Mechanisms of Luminescence Centers

Transition Probability of Luminescent Centers

Short Range, Rather than Long Range, Perfection for Phosphors

Number of Luminescence Centers Involved in the Measurement of Luminescence Intensities

Optimal Particle Sizes for Practical Phosphors

Stability of Luminescence Centers in Phosphor Particle

Voltage Dependence Curve of CL Intensities

Energy Conversion Efficiencies of CL Phosphors

IMPROVED LUMINANCE FROM THE PHOSPHOR SCREEN IN DISPLAY DEVICES

Improvements in the Screen Luminance of Color CRTs

Correlation between Screen Luminance and Spot Luminance

Image Luminance on Screens Perceived by the Human Eye

Lifetime of CL Phosphor Screens in CRTs

Flat CL Displays

IMPROVING THE IMAGE QUALITY OF PHOSPHOR SCREENS IN CL DISPLAYS

Threshold Resolution Power of the Human Eye

Survey of the Origin of Flickers

Powdered Screens Rather than Thin-Film Screens

Electric Properties of Bulk of CL Phosphor Particles in Screens

Optical Properties of Bulk Phosphor Particles

THE SCREENING OF PHOSPHOR POWDERS ON FACEPLATES

The Ideal Phosphor Screen

Practical Problems in Drying the Unwedged Phosphor Screen

Optimal Thickness of Phosphor Screens in CL Devices

Particle Size for High Resolution of Monochrome CL Images

Photolithography on Ideal Phosphor Screens

Practical Phosphor Screens

THE PRODUCTION OF PHOSPHOR POWDERS

Required Purity of Raw Materials for Phosphor Production

Source of Oxygen Contamination

Eradication of Oxygen from Heating Mixture

Identification of Flux Material for Growth of ZnS Particles

Growth of ZnS Particles in a Crucible

Heating Program of Furnace for ZnS Phosphor Production

Removal of By-Products from Produced ZnS Phosphor Powders

Production of Practical ZnS Phosphor Powders

Production of Y2O2S Phosphor Powders

THE DESIGN OF SCREENABLE PHOSPHOR POWDERS FOR CATHODOLUMINESCENT DEVICES

CONCLUSION

REFERENCES

Subject Categories

BISAC Subject Codes/Headings:
SCI053000
SCIENCE / Optics