1. Basic Physics and Materials Technology of GaN LEDs and LDs 2. Two. Theoretical Analysis of Optical Gain Spectra 3. Electrical Conductivity Control 4. Crystal Defects and Device Performance in LEDs and LDs 5. Emission Mechanisms and Excitons GaN and InGaN Bulk and QWs 6. Life testing and degradation mechanisms in InGaN LEDs 7. Development and Future Prospects of InGaN lasers and LEDs. Appendix.
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