Crystalline-as-deposited CaGa(sub 2)S(sub 4):Ce via low-temperature metal-organic chemical vapor deposition

摘要

A metal-organic chemical vapor deposition (MOCVD) process for the growth of crystalline-as-deposited cerium doped calcium thiogallate (CaGa(sub 2)S(sub 4):Ce) at substrate temperatures less than 600(degree)C has been developed. Blue-green electroluminescence was observed with a luminance of (approx) 2 cd/m(sup 2) at 40 volts above threshold using 60 Hz drive frequency. Threshold voltages were approximately 200 V.