Research on the degradation of AlGaInP Ultra High Brightness LEDs influenced by ohmic metal design
Four ohmic metal structures were fabricated and burn-in at 1A for 6000h. Less average ohmic metal structure results in higher voltage and power. Temperature arises from power of four ohmic design lead to degradation divergence. Exponential regressions based on international regulations were demonstrated. A constructive ohmic metal design guideline was conceptualized for commercial use.
degradation algainp ohmic metal ultra high brightness leds (uhb-leds)