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Crystal Research and Technology |
Cryst. Res. Technol. 43, 413 (2008) - Abstract -
Characterization of lead(II)chloride single crystals grown in silica gel
P. Nisha Santha Kumari and S. Kalainathan*
Department of Physics, Auxilium College, Vellore-632006, India
*School of Science and Humanities, VIT University, Vellore-632014, India
Acousto-optical materials play an important role in acousto-optic devices as acousto-optic modulators. Lead(II) chloride is an acousto-optical material, having high figure of merit approximately ten times greater than that of lead molybdate, which is an efficient acousto-optical material. It also possesses high birefringence, low attenuation coefficient, wide transparency range and good mechanical properties. This paper discusses in detail, the growth of single crystals of lead(II) chloride in silica gel by the process of diffusion in a highly acidic medium. Needle-type lead(II) chloride crystals have been obtained. The crystal system is confirmed to be orthorhombic by powder X-ray diffraction analysis. To study the optical transparency of the grown crystal, the transmission spectrum has been recorded in the range 190 – 1100 nm. Thermal stability of the crystal is also studied. Results are discussed in detail.
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