Study of Temperature Effect on the Energy Gap for Diodes with Different Doping Consentration

Abstract

In this research, three light emitting diodes, were connected separately in a simple circuit, at a reverse bias, the values of current, and voltage varies with temperature are recorded. For each diode. The Temperature is found to increase the current at constant voltage, which implies the exist of an energy gap. Also we found that the values of energy gap are less than the normal. The increasing of temperature Assume that it increases the velocity of electrons which jumps the barrier between, valence and convection band