Light-Emitting Diodes (Google eBook)

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Cambridge University Press, Jun 8, 2006 - Technology & Engineering - 236 pages
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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. Elementary properties such as electrical and optical characteristics are reviewed, followed by the analysis of advanced device structures. With nine additional chapters, the treatment of LEDs has been vastly expanded, including new material on device packaging, reflectors, UV LEDs, III-V nitride materials, solid-state sources for illumination applications, and junction temperature. Radiative and non-radiative recombination dynamics, methods for improving light extraction, high-efficiency and high-power device designs, white-light emitters with wavelength-converting phosphor materials, optical reflectors, and spontaneous recombination in resonant-cavity structures are discussed in detail. With exercises, solutions, and illustrative examples, this textbook will be of interest to scientists and engineers working on LEDs and graduate students in electrical engineering, applied physics, and materials science.
  

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Contents

History of lightemitting diodes
1
Radiative and nonradiative recombination
27
Theory of radiative recombination
48
Electrical properties
59
Optical properties
86
Packaging
191
Visiblespectrum LEDs
201
The AlGaInN material system and ultraviolet emitters
222
Spontaneous emission from resonant cavities
239
Resonantcavity lightemitting diodes
255
Human eye sensitivity and photometric qualities
275
Optical communication
367
Communication LEDs
382
Frequently used symbols 404
415
Copyright

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Page 2 - During an investigation of the unsymmetrical passage of current through a contact of carborundum and other substances a curious phenomenon was noted. On applying a potential of 10 volts between two points on a crystal of carborundum, the crystal gave out a yellowish light.

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About the author (2006)

E. F. Schubert received his PhD degree with honors in Electrical Engineering from University of Stuttgart in 1986 and is currently a Wellfleet Senior Constellation Professor at Rensselaer Polytechnic Institute. He has made several pioneering contributions to the field of LEDs including the first demonstration of the resonant-cavity light-emitting diode (RCLED). He has authored or co-authored more than 200 publications including Doping in III-V Semiconductors (Cambridge University Press, 1993, 052101784X) for which he was awarded the VDE Literature Prize. He is inventor or co-inventor of 28 US Patents and a Fellow of the IEEE, APS, OSA, and SPIE. He received the Senior Research Award of the Humboldt Foundation, the Discover Award for Technological Innovation, the RD 100 Award, and Boston University's Provost Innovation Fund Award.