Abstract
Solution growth by the “traveling heater method” (THM) employs a thermal arrangement where the highest temperature occurs near the middle of the solvent zone. One of the consequences for crystal growth in the generation of convection currents which can aid material transport in the molten zone. Since the magnitude of the convection depends on the properties of solvent and crystal, it is suggested that forced convection using “acceleration rotation” (AR) might be employed because it is reproducible and amenable to control. To observe the effect of rotation speed, cycle time, growth rate and temperature on crystallinity and numbers of voids or inclusions, a series of THM experiments was performed on the crystal growth of CdTe from Te solution. These showed that AR in this system is of only modest effect (it can increase the growth rate by a factor of 2), because the natural convection currents generated under the particular experimental conditions are already very strong indeed.
Published Version
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