Light-Emitting Diodes

A revised second edition, dedicated to the technology and physics of LEDs. Suitable for scientists, engineers, and graduate students.

Revised and fully up-dated, the second edition of this graduate textbook offers a comprehensive explanation of the technology and physics of LEDs such as infrared, visible-spectrum, ultraviolet, and white LEDs made from III-V semiconductors. With nine more chapters, the subject matter has been vastly expanded. Exercises, solutions, and illustrative examples make this book of interest to scientists and engineers working on LEDs, notably in lighting, illumination, and signage, and to graduate students in electrical engineering, applied physics, and materials science.

Preface; 1. History of light-emitting diodes; 2. Radiative and non-radiative recombination; 3. Theory of radiative recombination; 4. LED basics: electrical properties; 5. LED basics: optical properties; 6. Junction and carrier temperature; 7. High internal efficiency designs; 8. Design of current flow; 9. High extraction efficiency structures; 10. Reflectors; 11. Packaging; 12. Visible-spectrum LEDs; 13. The AlGaInN material system and ultraviolet emitters; 14. Spontaneous emission from resonant cavities; 15. Resonant cavity light-emitting diodes; 16. Human eye sensitivity and photometric qualities; 17. Colorimetry; 18. Planckian sources and color temperature; 19. Color mixing and color rendering; 20. White-light sources based on LEDs; 21. White-light sources based on wavelength converters; 22. Optical communication; 23. Communication LEDs; 24. LED modulation characteristics.