Characterization of a newly synthesized organic nonlinear optical crystal

Benzoyl valine

T. K. Kumar, R. S. Selvaraj, S. Janarthanan, Y. C. Rajan, S. Selvakumar, S. Pandi, M. S. Selvakumar, D. P. Anand

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Herein the synthesis and the crystal growth of benzoyl valine (BV), an organic nonlinear optical (NLO) material for frequency conversion was grown by slow evaporation solution growth technique at room temperature has been reported. The compound was prepared by Stockman method of benzoylation. The solubility curve shows linear nature up to a temperature of 313 K. XRD study reveals that the crystal belongs to monoclinic system with P21 non-centrosymmetric space group. The fundamental vibrational frequency of various functional groups (400-4000 cm-1) in the crystal was determined from FTIR analysis. 1H and 13C NMR spectral studies reveal the presence of proton and carbon network in the grown crystalline sample. The optical behaviour of the crystal was ascertained by optical UV absorption spectral studies. The UV cut off region (λmax) lies around 200 nm and the crystal is absolutely transparent from 220-800 nm suggesting its application as NLO material. The thermal stability of the crystal was determined by thermogravimetric and differential thermal analyses. Laser damage threshold of BV was found to be 0.34 GW/cm2 and hence BV can be used in frequency doubler system. Photoconductivity study of BV revealed negative photoconductiviting nature of the sample. The microhardness studies confirm that BV has a moderate Vickers hardness number (VHN) value in comparison to the other organic NLO crystals.

Original languageEnglish
Article number20401
JournalEPJ Applied Physics
Volume50
Issue number2
DOIs
Publication statusPublished - 01-05-2010

Fingerprint

Valine
Crystals
crystals
Optical materials
optical materials
Frequency doublers
Laser damage
Vickers hardness
laser damage
Photoconductivity
frequency converters
Vibrational spectra
yield point
Crystallization
Crystal growth
photoconductivity
Microhardness
microhardness
Functional groups
Protons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics

Cite this

Kumar, T. K., Selvaraj, R. S., Janarthanan, S., Rajan, Y. C., Selvakumar, S., Pandi, S., ... Anand, D. P. (2010). Characterization of a newly synthesized organic nonlinear optical crystal: Benzoyl valine. EPJ Applied Physics, 50(2), [20401]. https://doi.org/10.1051/epjap/2010033
Kumar, T. K. ; Selvaraj, R. S. ; Janarthanan, S. ; Rajan, Y. C. ; Selvakumar, S. ; Pandi, S. ; Selvakumar, M. S. ; Anand, D. P. / Characterization of a newly synthesized organic nonlinear optical crystal : Benzoyl valine. In: EPJ Applied Physics. 2010 ; Vol. 50, No. 2.
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Kumar, TK, Selvaraj, RS, Janarthanan, S, Rajan, YC, Selvakumar, S, Pandi, S, Selvakumar, MS & Anand, DP 2010, 'Characterization of a newly synthesized organic nonlinear optical crystal: Benzoyl valine', EPJ Applied Physics, vol. 50, no. 2, 20401. https://doi.org/10.1051/epjap/2010033

Characterization of a newly synthesized organic nonlinear optical crystal : Benzoyl valine. / Kumar, T. K.; Selvaraj, R. S.; Janarthanan, S.; Rajan, Y. C.; Selvakumar, S.; Pandi, S.; Selvakumar, M. S.; Anand, D. P.

In: EPJ Applied Physics, Vol. 50, No. 2, 20401, 01.05.2010.

Research output: Contribution to journalArticle

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T1 - Characterization of a newly synthesized organic nonlinear optical crystal

T2 - Benzoyl valine

AU - Kumar, T. K.

AU - Selvaraj, R. S.

AU - Janarthanan, S.

AU - Rajan, Y. C.

AU - Selvakumar, S.

AU - Pandi, S.

AU - Selvakumar, M. S.

AU - Anand, D. P.

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AB - Herein the synthesis and the crystal growth of benzoyl valine (BV), an organic nonlinear optical (NLO) material for frequency conversion was grown by slow evaporation solution growth technique at room temperature has been reported. The compound was prepared by Stockman method of benzoylation. The solubility curve shows linear nature up to a temperature of 313 K. XRD study reveals that the crystal belongs to monoclinic system with P21 non-centrosymmetric space group. The fundamental vibrational frequency of various functional groups (400-4000 cm-1) in the crystal was determined from FTIR analysis. 1H and 13C NMR spectral studies reveal the presence of proton and carbon network in the grown crystalline sample. The optical behaviour of the crystal was ascertained by optical UV absorption spectral studies. The UV cut off region (λmax) lies around 200 nm and the crystal is absolutely transparent from 220-800 nm suggesting its application as NLO material. The thermal stability of the crystal was determined by thermogravimetric and differential thermal analyses. Laser damage threshold of BV was found to be 0.34 GW/cm2 and hence BV can be used in frequency doubler system. Photoconductivity study of BV revealed negative photoconductiviting nature of the sample. The microhardness studies confirm that BV has a moderate Vickers hardness number (VHN) value in comparison to the other organic NLO crystals.

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Kumar TK, Selvaraj RS, Janarthanan S, Rajan YC, Selvakumar S, Pandi S et al. Characterization of a newly synthesized organic nonlinear optical crystal: Benzoyl valine. EPJ Applied Physics. 2010 May 1;50(2). 20401. https://doi.org/10.1051/epjap/2010033