II-VI heterostructures composed of ZnSe/ZnTeSe layers have been employ
ed to develop high-brightness green, light-emitting diodes operating a
t peak wavelengths in the pure green spectral region (508-514nm). The
brightest devices produce 792muW (10 mA, 4V) peaked at 510nm. This cor
responds to an external efficiency of 2% and a luminous performance of
8.0 lumen/W.