Light Emitting Diodes: An Introduction |
Contents
Materials for LEDs | 19 |
LED Technology | 40 |
Contents vii | 45 |
Copyright | |
9 other sections not shown
Common terms and phrases
absorption active layer alloyed atoms band gap bandwidth blue LEDs brightness carrier recombination cathode charge carrier color concentration conduction band crystal degradation depends deposition detector devices diffusion length dislocation dominant wavelength doping levels double heterostructure edge emitters electron emission epitaxial layer epoxy etch example fabrication fibers forward current frequency GaAs GaAs diodes GaAs substrate gallium green LEDs III-V compounds impurities increasing infrared injection internal efficiency lattice constant LED chips light emitting diodes liquid phase epitaxy luminous luminous flux material measured metal method nitrogen nonradiative recombination ohmic contacts optical photometric photon photopic vision Phys plasma pn junction produced radiant flux radiant intensity radiation radiative recombination red LEDs region semiconductor shown in Fig side silicon space angle space charge spectral spectrum sputter standard red surface emitters temperature thermal thickness tion total reflection typical vapor phase epitaxial wafers