ELECTROLUMINESCENCE FROM SINGLE-CRYSTAL CU2O DIODES

The infrared electroluminescence has been measured in different types of single crystal Cu//2O-Cu diodes under forward bias at various temperatures. Diodes which showed double-injection current-voltage characteristics in previous studies showed transient electroluminescence response at low currents and dc response at higher currents. On the other hand, diodes that showed the characteristics of single injection in previous studies showed transient electroluminescence response only. The present studies on electroluminescence are related to previous findings. The present studies also reveal some information on the injection process. The differences and similarities between electroluminescence and photoluminescence of Cu//2O are also discussed.