Red Photoluminescent Efficiency and Minority-Carrier Lifetime of GaP(Zn,O) Pulled from Nonstoichiometric Melts

Abstract
GaP (Zn, O) crystals pulled from nonstoichiometric melts by the liquid‐encapsulation Czochralski (LEC) technique bridge the gap between the red photoluminescent quantum efficiencies of platelets grown from solution and crystals pulled by LEC from a stoichiometric melt. A linear correlation is shown to exist between the nonradiative shunt‐path component of the total reciprocal minority‐carrier lifetime and the Ga‐vacancy concentration of these different crystals.