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1. |
Record Nr. |
UNINA9910139758803321 |
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Autore |
Morkoç Hadis |
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Titolo |
Handbook of nitride semiconductors and devices . Vol. 3 GaN-based optical and electronic devices [[electronic resource] /] / Hadis Morkoç |
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Pubbl/distr/stampa |
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Weinheim, : Wiley-VCH |
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[Chichester, : John Wiley, distributor], 2009 |
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ISBN |
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1-282-27933-5 |
9786612279331 |
3-527-62844-4 |
3-527-62845-2 |
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Descrizione fisica |
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1 online resource (905 p.) |
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Collana |
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Handbook of Nitride Semiconductors and Devices (VCH) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Semiconductors - Materials |
Nitrides |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Handbook of Nitride Semiconductors and Devices; Contents; Preface; Color Tables; 1 Light-Emitting Diodes and Lighting; Introduction; 1.1 Current-Conduction Mechanism in LED-Like Structures; 1.2 Optical Output Power; 1.3 Losses and Efficiency; 1.4 Current Crowding; 1.5 Packaging; 1.6 Perception of Visible Light and Color; 1.7 Visible-Light Terminology; 1.7.1 Luminous Efficacy; 1.7.2 Chromaticity Coordinates and Color Temperature; 1.8 Inroads by LEDs; 1.9 Nitride LED Performance; 1.9.1 LEDs on Sapphire Substrates; 1.9.1.1 Blue and Green LEDs; 1.9.1.2 Amber LEDs; 1.9.1.3 UV LEDs |
1.9.1.4 Resonant Cavity-Enhanced LED1.9.1.5 Effect of Threading Dislocation on LEDs; 1.9.2 LEDs on SiC Substrates; 1.9.3 LEDs on Si Substrates; 1.9.4 LEDs Utilizing Rare Earth Transitions; 1.10 On the Nature of Light Emission in Nitride-Based LEDs; 1.10.1 Pressure Dependence of Spectra; 1.10.2 Current and Temperature Dependence of Spectra; 1.11 LED Degradation; 1.12 LED Efficiency; 1.13 Monochrome Applications of LEDs; 1.14 Luminescence Conversion and White-Light Generation with Nitride LEDs; 1.14.1 Color as Related to White-Light LEDs; 1.14.2 Color Rendering Index |
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1.15 Approaches to White-Light Generation1.15.1 White Light from Three-Chip LEDs; 1.15.2 White Light from Four-Chip LEDs; 1.15.3 Combining LEDs and Phosphor(s); 1.15.4 Other Photon Conversion Schemes; 1.16 Toward the White-Light Applications; 1.17 Organic/Polymeric LEDs (OLED, PLED); 1.17.1 OLED Structures; 1.17.2 Charge and Energy Transport Fundamentals; 1.17.3 Properties of Organic Crystals; 1.17.4 Light Emission Dynamics; 1.17.4.1 Nonradiative Recombination; 1.17.4.2 Internal Conversion; 1.17.4.3 Intersystem Crossing; 1.17.4.4 Singlet Fission; 1.17.4.5 Aggregation and Davydov Splitting |
1.17.4.6 Charge-Transfer Excitons1.17.5 OLED Devices; 1.17.5.1 White OLEDs; 1.17.5.2 Displays; 1.17.6 Lighting with OLEDs; References; 2 Semiconductor Lasers; Introduction; 2.1 A Primer to the Principles of Lasers; 2.2 Waveguiding; 2.2.1 Refractive Index of GaN and AlGaN; 2.2.2 Refractive Index of InGaN; 2.2.3 Analytical Solution to the Waveguide Problem; 2.2.4 Numerical Solution of the Waveguide Problem; 2.2.5 Far-Field Pattern; 2.3 Loss, Threshold, and Cavity Modes; 2.4 Optical Gain; 2.4.1 A Glossary for Semiconductor Lasers; 2.4.2 Optical Gain in Bulk Layers: A Semiconductor Approach |
2.4.2.1 Relating Absorption Rate to Absorption Coefficient2.4.2.2 Relating Stimulated Emission Rate to Absorption Coefficient; 2.4.2.3 Relating Spontaneous Emission Rate to Absorption Coefficient; 2.4.2.4 Fermi's Golden Rule, Stimulated and Spontaneous Emission Rates, and Absorption Coefficient Within the k-Selection Rule; 2.4.3 Gain in Quantum Wells; 2.5 Coulombic Effects; 2.6 Numerical Gain Calculations for GaN; 2.6.1 Optical Gain in Bulk GaN; 2.6.2 Gain in GaN Quantum Wells; 2.6.3 Gain Calculations in Wz GaN Q Wells Without Strain; 2.6.4 Gain Calculations in Wz Q Wells with Strain |
2.6.5 Gain in ZB Q Wells Without Strain |
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Sommario/riassunto |
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The three volumes of this handbook treat the fundamentals, technology and nanotechnology of nitride semiconductors with an extraordinary clarity and depth. They present all the necessary basics of semiconductor and device physics and engineering together with an extensive reference section. Volume 3 deals with nitride semiconductor devices and device technology. Among the application areas that feature prominently here are LEDs, lasers, FETs and HBTs, detectors and unique issues surrounding solar blind detection. |
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2. |
Record Nr. |
UNINA9910136317603321 |
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Titolo |
ANSI/IEEE 275-1981 : IEEE Recommended Practice for Thermal Evaluation of Insulation Systems for AC Electric Machinery Employing Form-Wound Pre-Insulated Stator Coils, Machines Rated 6900 V and Below / / IEEE |
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Pubbl/distr/stampa |
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Piscataway, NJ : , : IEEE, , 1981 |
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ISBN |
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Descrizione fisica |
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1 online resource (12 pages) |
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Collana |
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Disciplina |
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Soggetti |
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Insulation (Heat) |
Insulation (Heat) - Standards |
Electric insulators and insulation |
Electric machinery - Alternating current |
Electrical engineering - Standards |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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This standard outlines a test procedure for comparing two or more insulation systems in accordance with their expected life at rated temperature. The procedure is limited to insulation systems for alternating-current electrical machines using form-wound pre-insulated stator coils and rated 6900 V and below. It is the intent of this procedure to evaluate insulation systems for use in usual service conditions with air cooling. It does not cover such special requirements as machines enclosed in gas atmospheres, subjected to strong chemicals, to metal dusts, or to submersion in liquids, etc. The procedure includes instructions for testing candidate systems in comparison with known systems having a proven record of service experience and interpretation of the results. |
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