High reliability of AlGaInP LED's with efficient transparent contacts for spatially uniform light emission

[[abstract]]© 1995 Institute of Electrical and Electronics Engineers - The indium-tin oxide (ITO) films with low sheet resistance and conducting transparency have been used on the AlGaInP double-heterostructure orange light-emitting diodes (LED's) to improve the light extraction from the LED surface and device reliability. The orange LED's with ITO films exhibit a light output power of 1 mW at 50 mA, which is corresponding to an external quantum efficiency of 1.1%. They can operate stably for more than 3000 h at 20 mA and 25°C without any degradation.[[department]]電機工程學