Metalorganic Vapor Phase Epitaxy of ZnSe Using Tertiarybutylselenol as Selenium Source Precursor

Metalorganic vapor phase epitaxy of ZnSe on a GaAs substrate was carried out using a novel organic selenium source, tertiarybutylselenol (t-BuSeH), for the first time. A constant and high growth rate was attainable in the growth temperature range of 280-500°C using t-BuSeH. The low-temperature reaction between diethylzinc and t-BuSeH was virtually eliminated, therefore growth uniformity and reproducibility were satisfactory. The grown ZnSe layers were evaluated to be of high quality by photoluminescence and X-ray diffraction measurement.