Transient effects during the horizontla Bridgman growth of cadmium zinc teluride

摘要

The horizontla Bridgman growth of cadmium zinc telluride is investigated with respect to the couplin of heat, momentum, and mass transport using a two-dimentional, time-dependent, finite element model. Growth at cruible translation rates fast enough to result in purely transient behavior is shown to encourage the favored shelf growth morphology and reduce te axial segregation of zinc in the shelf. Fast crucible translation violates the conventioanl goal of quasi-steady melt growth conditions; however, this time-dependent processing strategy yields beneficial results for the growth of this material.