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Growth and characterization of thiourea mixed cadmium – lead chloride – a nonlinear optical crystal

✍ Scribed by K. Nagarajan; S. Kumara Raman; R. Sundaram

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
148 KB
Volume
44
Category
Article
ISSN
0232-1300

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✦ Synopsis

Nonlinear optical (NLO) crystal of thiourea mixed cadmium-lead chloride dihydrate Cd[(PbCl 3 )(NH 2 CSNH 2 )].2H 2 O (TCCPC) have been grown in solution by slow evaporation technique at room temperature. The powder X-ray diffraction pattern has been recorded and indexed. The UV-Vis-NIR transmittance and FT-IR spectrum have been recorded in the range 200-1090 nm and 400-4000 cm -1 , respectively. The lower cut-off wavelength is 280 nm in the UV region, which is higher than that of pure Cd(PbCl 3 ) (CCPC) crystal. The presence of functional groups has been confirmed by FT-IR analysis. The TCCPC crystal was characterized by SEM and EDX spectrum. The second harmonic generation (SHG) of the thiourea mixed cadmium-lead chloride (TCCPC) crystal is demonstrated by the Kurtz Perry method using Nd:YAG laser and the results confirm that the grown crystal is roughly three times more efficient than ADP.

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