CRYSTAL-GROWTH OF CDTE IN A MULTIZONE VERTICAL BRIDGMAN FURNACE WITH A PBN CRUCIBLE

Single crystal CdTe growth in a multi-zone vertical Bridgman furnace is reported. The furnace could produce any temperature profile between 26 and 0°C/cm on a programmed time schedule. The sticking mechanism of the grown ingot to the quartz ampoule was studied using XPS. It was found that TeO2 formed on the source material caused the adhesion. A treatment of the source material to avoid adhesion has been found. Crystal growth in a pyrolytic boron nitride crucible has also been examined and promising results for the growth of high quality crystal were obtained. © 1990, Elsevier Science Publishers B.V.. All rights reserved.