Abstract
Zinc oxide whiskers, platelets, and dendrites have been grown on the ZnO substrate by a simplified and modified vapor phase technique which involves the production of zinc vapor at the growth temperatures itself. By this method, whiskers-a few mm in length and a fraction of a mm in diameter-have been obtained at growth temperatures ranging from 960 to 980°C. Change in growth habit from whiskers to platelets has also been observed. Various growth mechanisms have been discussed. It appears that the growth of these crystals takes place at supersaturations higher than those usually required for whisker growth. The dendrites have been observed to grow at about 930°C.
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