P‐109: Temperature‐dependent Forward Voltage of AlGaInP‐based Red Micro‐LEDs

Abstract

Temperature-dependent electrical characteristics and voltages (dVf /dT) of AlGaInP Micro-LEDs were investigated. The J-V curves of the Micro-LEDs indicate the existence of a big resistance. The measured (dVf /dT) was-3 mV/K, which is higher than the expected value in Shockley model. This was attributed to a resistance, leading to higher temperature sensitivity.