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Highly efficient GaN vertical lightemitting diode on metal alloy substrate from near UV
Reliability of GaNbased vertical lightemitting diodes on metal alloy substrate for solid
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AlInGaP ambient temperature angle Ashdown Proc background backlighting blue LED chromaticity collimator color rendering color rendering index color temperature Conference on Solid devices diffuser dimming display distribution drive current duty cycle emission energy feedback fixture fluorescent lamps green LED heat sink illumination imprint increase InGaN InGaN/GaN integrating sphere intensity junction temperature LED chip LED cluster LED package light extraction efficiency light output light sources light-emitting diodes lightguide lighting applications lumens luminous efficacy luminous flux manufacturers measured micro-cavity module Nadarajah Narendran nanocrystals OLED optical peak wavelength shift performance phosphor phosphor layer photodiode photoluminescence Phys quantum reflective requirements samples shown in Figure shows signage silicon simulation Solid State Lighting solid-state lighting spectral spectrum SPIE Vol structure substrate surface thermal resistance Tsunemasa Taguchi typical values voltage wafer white LEDs white light