Effect of growth conditions on the structure of CdI2 crystals grown from solution
1981; Elsevier BV; Volume: 52; Linguagem: Inglês
10.1016/0022-0248(81)90407-3
ISSN1873-5002
Autores Tópico(s)Solid-state spectroscopy and crystallography
ResumoA polytypic study of nearly 450 CdI2 and Cd-I-Br crystals grown from different solutions at 5, 25 and 50°C was presented. The solvents: H2O, C2H5OH, acetone, H2O + C2H5OH and H2O + acetone were used for crystallization. It was found that the polytypic structure of CdI2 crystals strongly depends on the type of a solvent and the temperature of growth: (1) the solvent is the important parameter in generating stacking faults, (2) the temperature plays the dominant role in the process of ordering of stacking faults. Increase in the temperature of crystallization favours growth of polytypes. It was found that for some specific growth conditions the polytype 2H and not 4H (which is the most common polytype of CdI2) is the basic structure in CdI2 crystals.
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