Abstract
The higher supersaturation was achieved by means of the over-heating of growth solution. This method was applied to watersoluble crystal, Deuterated L-A lanine-doped TGS (dLATGS). The dLATGS crystalis a pyroelectric material for the infrared detector which, in general, exhibits one of the highest pyroelectric response of all such materials. The over-heating enlarges the metastable zone during temperature-reducing growing process as a result of eliminating the initial clusters in the mother solution.
A dLATGS crystal (9×2×7cm) was grown with an average rate of 2×2×0.6mm/day (24g/day) in direction of a, -b and c axe s, respectively. This growth rate was several times larger than that of the conventional growth method. The internal bias shown in D-E curves depends on the growth rate of L-Alanine doped crystal of which an uniformity was enough fine to use as an electronic device.
The distribution coefficient of L-Alanine molecule increased with increasing the growth rate.
