Optical and structural properties of Zn_1-xBe_xSe Mixed crystals

摘要

Optical and structural properties of Zn_1-xBe_xSe bulk crystals in the range of composition 0≤x≤0.41 have been studied. These crystals were grown by Bridgman method under an argon overpressure. Transmission, absorption, photoluminescence and photoacoustic spectra as a function of composition were investigated. It has been found that the crystal structure is of sphalerite type. The crystal quality increases when the crystallization process of the same boule is performed more than once.