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IJPAP Vol.43(11) [November 2005] >


Title: Growth and characterization of pure and aniline doped benzoyl glycine single crystals
Authors: Anand, D Prem
Selvakumar, S
Ambujam, K
Rajarajan, K
Keywords: Solution growth
Organic NLO
Benzoyl glycine (BG)
FTIR
Dielectric
VHN
Microhardness
Issue Date: Nov-2005
Publisher: CSIR
IPC CodeC30B
Abstract: Optically good quality single crystals of organic non-linear optical pure benzoyl glycine (BG) and aniline doped BG of dimensions up to 54.55 mm3 and 3x3.52.5 mm3, respectively, are grown by solution growth technique. The grown crystals are characterized by single crystal XRD, FTIR, optical absorption, thermogravimetric(TG) analysis, microhardness, dielectric and photoconductivity studies. The microhardness studies suggest that the aniline substituted crystals have improved Vickers hardness number (VHN) values than the pure ones. The Non-linear Optical (NLO) test confirms the second harmonic signal generation in both pure and doped samples. The thermal studies of the pure and doped BG crystal indicate a marginal increase in the thermal stability of the doped crystal. The dielectric response of the sample is studied in the frequency region of 50 Hz - 500 kHz and the influence of aniline substitution on the dielectric behaviour has been investigated. Photoconductivity studies of pure and doped BG crystal reveal the positive photoconducting nature.
Page(s): 863-868
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.43(11) [November 2005]

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