Semiconducting CdF2 : Mn—A new material for efficient blue-green electroluminescence

Efficient blue-green (λmax=520 nm) electroluminescence in MIS structures on CdF2 : Mn Y crystals was obtained. The structures are driven by asymmetric voltage pulses with accelerating amplitude in the range 50–100 V and active current density less than 10−5 A/cm2. The average quantum and power efficiencies at 10 fL exceeding 10 and 0.5%, respectively, and a uniform emitting area up to 1 cm2 were achieved, indicating the suitability of CdF2 : Mn for display purposes.