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Growth and characterization of nonlinear optical zinc hydrogen phosphate single crystal grown in silica gel

✍ Scribed by C. Justin Raj; G. Mangalam; S. Mary Navis Priya; J. Mary Linet; C. Vesta; S. Dinakaran; B. Milton Boaz; S. Jerome Das

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
149 KB
Volume
42
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

Good optical quality single crystals of zinc hydrogen phosphate (ZnHPO~4~) having dimensions up to 8Γ—2Γ—2 mm^3^ have been grown with the aid of sodium meta silicate gel. Single crystal XRD studies confirm that the crystal belongs to the orthorhombic system with space group P2~1~2~1~2~1~. The functional groups present in the crystals were confirmed using FTIR technique. Optical absorbance shows very low absorption in the entire visible region. Differential thermal and thermo gravimetric analysis confirmed that the crystal is stable up to 193Β°C. Photoconductivity study reveals positive photoconductivity in the presence of photo active centers formed by trap energy levels. The NLO activity of the crystal was confirmed by Kurtz powder technique. (Β© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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