Introduction | p. 1 |
LEDs and LDs | p. 1 |
Group-III Nitride Compound Semiconductors | p. 3 |
Background | p. 7 |
Introduction | p. 7 |
Applications and Markets for Gallium Nitride Light Emitting Diodes (LEDs) and Lasers | p. 7 |
Who Were the Early Key Players in the Field? | p. 10 |
Why InGaN/AlGaN? | p. 11 |
Key Steps in the Discovery - Materials Issues | p. 13 |
Research History of Shuji Nakamura and Selected Steps in the Development of the Commercial Blue GaN LED | p. 15 |
Why Did Nichia Succeed Where Many Much Larger Multinationals and Research Groups Failed? | p. 17 |
Additional Comments on Blue LED Research | p. 20 |
A Short Summary of the Physics of Semiconductor Lasers and LEDs | p. 21 |
LEDs | p. 23 |
Lasers | p. 24 |
Physics of Gallium Nitride and Related Compounds | p. 29 |
Introduction | p. 29 |
Crystal Structures | p. 29 |
Wurtzite versus Zincblende Structure | p. 29 |
Growth of Wurtzite GaN onto Sapphire | p. 31 |
Growth of Cubic (Zincblende) GaN | p. 31 |
Growth of GaN onto Other Substrates | p. 32 |
Electronic Band Structure | p. 32 |
Fundamental Optical Transitions | p. 34 |
Band Structure Near the Fundamental Gap | p. 35 |
Band Parameters and Band Offsets for GaN, AlN, and InN | p. 36 |
Elastic Properties -Phonons | p. 38 |
Other Properties of Gallium Nitride | p. 38 |
Negative Electron Affinity (NEA) | p. 41 |
Pyroelectricity | p. 41 |
Transferred-Electron Effect (Gunn Effect) | p. 41 |
Summary of Properties | p. 42 |
GaN Growth | p. 47 |
Growth Methods for Crystalline GaN | p. 47 |
A New Two-Flow Metalorganic Chemical Vapor Deposition System for GaN Growth (TF-MOCVD) | p. 48 |
In Situ Monitoring of GaN Growth Using Interference Effects | p. 52 |
Introduction | p. 52 |
Experimental Details | p. 52 |
GaN Growth Without AlN Buffer Layer | p. 54 |
GaN Growth with AlN Buffer Layer | p. 59 |
Summary | p. 65 |
Analysis ofReal-Time Monitoring Using Interference Effects | p. 65 |
Introduction | p. 65 |
Experimental Details | p. 66 |
Results and Discussion | p. 67 |
Summary | p. 75 |
GaN Growth Using GaN Buffer Layer | p. 75 |
Introduction | p. 75 |
Experimental Details | p. 75 |
Results and Discussion | p. 76 |
In Situ Monitoring and Hall Measurements of GaN Growth with GaN Buffer Layers | p. 79 |
Introduction | p. 79 |
Experimental Details | p. 80 |
Results and Discussion | p. 80 |
Summary | p. 88 |
p-Type GaN Obtained by Electron Beam Irradiation | p. 89 |
Highly p-Type Mg-Doped GaN Films Grown with GaN Buffer Layers | p. 89 |
Introduction | p. 89 |
Experimental Details | p. 89 |
Results and Discussion | p. 90 |
High-Power GaN p-n Junction Blue Light Emitting Diodes | p. 95 |
Introduction | p. 95 |
Experimental Details | p. 95 |
Results and Discussion | p. 96 |
Summary | p. 101 |
n-Type GaN | p. 103 |
Si- and Ge-Doped GaN Films Grown with GaN Buffer Layers | p. 103 |
Experimental Details | p. 104 |
Si Doping | p. 104 |
Ge Doping | p. 108 |
Mobility as a Function ofthe Carrier Concentration | p. 111 |
Summary | p. 112 |
p-Type GaN | p. 113 |
History of p-Type GaN Research | p. 113 |
Thermal Annealing Effects on p-Type Mg-Doped GaN Films | p. 114 |
Introduction | p. 114 |
Experimental Details | p. 114 |
Results and Discussion | p. 114 |
Appendix | p. 119 |
Hole Compensation Mechanism of p-Type GaN Films | p. 120 |
Introduction | p. 120 |
Experimental Details | p. 120 |
Results and Discussion: Explanation of the Hole Compensation Mechanism of p-Type GaN | p. 121 |
Summary: Hydrogen Passivation and Annealing of p-Type GaN | p. 135 |
Properties and Effects of Hydrogen in GaN | p. 136 |
Present State ofKnowledge | p. 137 |
Passivation | p. 140 |
Hydrogen in As-Grown GaN | p. 141 |
Diffusion of H in Implanted or Plasma-Treated GaN | p. 145 |
Summary | p. 147 |
InGaN | p. 149 |
Introductory Remarks: The Role of Lattice Mismatch | p. 149 |
High-Quality InGaN Films Grown on GaN Films | p. 150 |
Introduction: InGaN on GaN | p. 150 |
Experimental Details: InGaN on GaN | p. 151 |
Results and Discussion: InGaN on GaN | p. 151 |
Summary: InGaN on GaN | p. 154 |
Si-Doped InGaN Films Grown on GaN Films | p. 155 |
Introduction: Si-Doped InGaN on GaN | p. 155 |
Experimental Details: Si-Doped InGaN on GaN | p. 155 |
Results and Discussion: Si-Doped InGaN on GaN | p. 155 |
Summary: Si-Doped InGaN on GaN | p. 159 |
Cd-Doped InGaN Films Grown on GaN Films | p. 160 |
Introduction: Cd-doped InGaN on GaN | p. 160 |
Experimental Details | p. 161 |
Results and Discussion | p. 161 |
Summary: Cd-Doped InGaN | p. 166 |
<$>{\rm In}_x{\rm Ga}_{1-x} {\rm N}/{\rm In}_y{\rm Ga}_{1-y}{\rm N}<$> Superlattices Grown on GaN Films | p. 166 |
Introduction: <$>{\rm In}_x{\rm Ga}_{1-x} {\rm N}/{\rm In}_y{\rm Ga}_{1-y}{\rm N}<$> Superlattices | p. 166 |
Experiments: <$>{\rm In}_x{\rm Ga}_{1-x} {\rm N}/{\rm In}_y{\rm Ga}_{1-y}{\rm N}<$> Superlattices | p. 167 |
Results and Discussion: <$>{\rm In}_x{\rm Ga}_{1-x} {\rm N}/{\rm In}_y{\rm Ga}_{1-y}{\rm N}<$> Superlattices | p. 167 |
Summary: InxGa1-xN/InyGa1-yN Superlattices | p. 174 |
Growth of <$>{\rm In}_x{\rm Ga}_{1-x}{\rm N}<$> Compound Semiconductors and High-Power InGaN/AlGaN Double Heterostructure Violet Light Emitting Diodes | p. 174 |
Introduction | p. 174 |
Experimental Details | p. 174 |
Growth and Properties of <$>{\rm In}_x{\rm Ga}_{1-x}{\rm N}<$> Compound Semiconductors | p. 177 |
High Power InGaN/AlGaN Double Heterostructure Violet Light Emitting Diodes | p. 181 |
Summary | p. 183 |
p-GaN/n-InGaN/n-GaN Double-Heterostructure Blue Light Emitting Diodes | p. 184 |
Experimental Details | p. 184 |
Results and Discussion | p. 184 |
Summary | p. 188 |
High-Power InGaN/GaN Double-Heterostructure Violet Light Emitting Diodes | p. 188 |
Zn and Si Co-Doped InGaN/AlGaN Double-Heterostructure Blue and Blue-Green LEDs | p. 193 |
Zn-Doped InGaN Growth and InGaN/AlGaN Double-Heterostructure Blue Light Emitting Diodes | p. 193 |
Introduction | p. 193 |
Experimental Details | p. 194 |
Zn-Doped InGaN | p. 194 |
InGaN/AlGaN DH Blue LEDs | p. 198 |
Candela-Class High-Brightness InGaN/AlGaN Double-Heterostructure Blue Light Emitting Diodes | p. 201 |
High-Brightness InGaN/AlGaN Double-Heterostructure Blue-Green Light Emitting Diodes | p. 203 |
A Bright Future for Blue-Green LEDs | p. 207 |
Introduction | p. 207 |
GaN Growth | p. 209 |
InGaN | p. 209 |
InGaN/AlGaN DH LED | p. 209 |
Summary | p. 214 |
InGaN Single-Quantum-Well LEDs | p. 215 |
High-Brightness InGaN Blue, Green, and Yellow LEDs with Quantum-Well Structures | p. 215 |
Introduction | p. 215 |
Experimental Details | p. 216 |
Results and Discussion | p. 217 |
Summary | p. 220 |
High-Power InGaN Single-Quantum-Well Blue and Violet Light Emitting Diodes | p. 220 |
Super-Bright Green InGaN Single-Quantum-Well Light Emitting Diodes | p. 223 |
Introduction | p. 223 |
Experimental Details | p. 224 |
Results and Discussion | p. 225 |
Summary | p. 229 |
White LEDs | p. 230 |
Room-Temperature Pulsed Operation of Laser Diodes | p. 237 |
InGaN-Based Multi-Quantum-Well Laser Diodes | p. 237 |
Introduction | p. 237 |
Experimental Deatils | p. 237 |
Results and Discussion | p. 239 |
Summary | p. 242 |
InGaN Multi-Quantum-Well Laser Diodes with Cleaved Mirror Cavity Facets | p. 242 |
Introduction | p. 242 |
Experimental Details | p. 242 |
Results and Discussion | p. 244 |
Summary | p. 247 |
InGaN Multi-Quantum-Well Laser Diodes Grown on MgAl2O4 Substrates | p. 247 |
Characteristics of InGaN Multi-Quantum-Well Laser Diodes | p. 252 |
The First III-V-Nitride-Based Violet Laser Diodes | p. 256 |
Introduction | p. 256 |
Experimental Details | p. 256 |
Results and Discussion | p. 258 |
Summary | p. 262 |
Optical Gain and Carrier Lifetime of InGaN Multi-Quantum-Well Laser Diodes | p. 262 |
Ridge-Geometry InGaN Multi-Quantum-Well Laser Diodes | p. 268 |
Longitudinal Mode Spectra and Ultrashort Pulse Generation of InGaN Multi-Quantum-Well Laser Diodes | p. 273 |
Emission Mechanisms of LEDs and LDs | p. 279 |
InGaN Single-Quantum-Well (SQW)-Structure LEDs | p. 279 |
Emission Mechanism of SQW LEDs | p. 281 |
InGaN Multi-Quantum-Well (MQW)-Structure LDs | p. 284 |
Summary | p. 289 |
Room Temperature CW Operation of InGaN MQW LDs | p. 291 |
First Continuous-Wave Operation of InGaN Multi-Quantum-Well-Structure Laser Diodes at 233 K | p. 291 |
First Room-Temperature Continuous-Wave Operation of InGaN Multi-Quantum-Well-Structure Laser Diodes | p. 296 |
RT CW Operation of InGaN MQW LDs with a Long Lifetime | p. 301 |
Blue/Green Semiconductor Laser | p. 305 |
Blue/Green LEDs | p. 305 |
Bluish-Purple LDs | p. 307 |
Summary | p. 313 |
RT CW InGaN MQW LDs with improved Lifetime | p. 314 |
Latest Results: Lasers with Self-Organized InGaN Quantum Dots | p. 319 |
Introduction | p. 319 |
Fabrication | p. 319 |
Emission Spectra | p. 320 |
Self-Organized InGaN Quantum Dots | p. 325 |
Advances in LEDs | p. 326 |
Advances in Laser Diodes | p. 328 |
Conclusions | p. 335 |
Summary | p. 335 |
Outlook | p. 336 |
Appendix | p. 339 |
Biographies | p. 343 |
Shuji Nakamura | p. 343 |
Gerhard Fasol | p. 344 |
Stephen Pearton | p. 345 |
References | p. 347 |
Index | p. 361 |
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