SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (3): 701-708.doi: 10.1016/j.cjche.2018.06.029

• Materials and Product Engineering • Previous Articles     Next Articles

Investigation on the key aspects of l-arginine para nitrobenzoate monohydrate single crystal: A non-linear optical material

Sonia1,2, N. Vijayan2, Mahak Vij1,2, Kanika Thukral1,2, Naghma Khan1,2, D. Haranath2, Rajnikant3, M. S. Jayalakshmy4   

  1. 1 Academy of Scientific and Innovative Research, CSIR- National Physical Laboratory, New Delhi 110012, India;
    2 CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi 110 012, India;
    3 Department of Physics, University of Jammu, Jammu, Tawi, India;
    4 International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
  • Received:2018-04-10 Revised:2018-06-22 Online:2019-03-28 Published:2019-04-25
  • Contact: N.Vijayan,E-mail address:nvijayan@nplindia.org E-mail:nvijayan@nplindia.org

Abstract: In the contemporary days, non-linear optical materials (NLO) are getting higher attention as per the increasing demand in optical communication and data storage technology. Consequently, they explore various physical properties of the NLO material for their industrial applications. In current report, l-arginine p-nitrobenzoate monohydrate (LANB) single crystals were obtained by adopting slow cooling technique. The structural confirmation of grown single crystal was carried out using single crystal X-Ray diffractometer. Presence of strain within single crystal was deduced using Hall-Williamson relation. Various defects associated within single crystal were assessed using high resolution XRD. Additionally, its crystalline quality was again confirmed by time resolved photoluminescence spectroscopy (TRPL). Using transmission spectra, the cut off wavelength and band gap of the host material was determined to be nearly 420 nm and 2.9 eV respectively. The dielectric property has been recorded by varying the frequency ranging from 50 Hz to 100 kHz. The curve suggests that dielectric loss value is less at high frequency ensures the suitability of crystal in photonics and NLO based devices. The laser damage threshold values were also measured for single and multiple shots. Thermal parameters of the titled compound were calculated using PPE. In photoconductivity measurement, negative photoconductivity has been observed in titled compound. Microhardness studies were also performed on single crystal to explore its mechanical properties.

Key words: Photoluminescence, Thermal conductivity, Specific heat, Thermal effusivity, Damage threshold