An investigation on photoacoustic spectroscopy and dielectric properties of sulfanilic acid nonlinear optical single cry
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An investigation on photoacoustic spectroscopy and dielectric properties of sulfanilic acid nonlinear optical single crystal for different applications J. Thirupathy1 · S. Sahaya Jude Dhas2 · M. Jose3 · S. A. Martin Britto Dhas3 Received: 6 April 2020 / Accepted: 13 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Sulfanilic acid (SA) crystal has been very well established as an excellent material for the applications such as photonic, electro-optical and harmonic generation in non linear optics (NLO). This article is deliberated on good quality SA single crystal which has been grown by slow evaporation solution technique as it is a prominent NLO material. After the growth period of 95 days, a transparent SA single crystal has been collected with the dimension of 9 × 9 × 2 mm3. The grown crystal has been subjected to photoacoustic spectroscopy (PAS) and impedance analyses. The study of PAS has been utilized to find out thermal diffusivity and the observed result qualifies the crystal to be suitable for lasers and high temperature related applications. Impedance analysis has been implemented for the grown SA crystal for various values of temperature and it comes out with good results so that it could be a candidate for few applications in the field of microelectronic and electrooptical industries.
1 Introduction Sulfanilic acid (SA) is identified as a fascinating and promising organic compound which has lot of applications with the prominent inclusion of possessing nonlinear optical (NLO) property such that it is a good candidate for optoelectronics. Materials possessing superior NLO property have been identified to be endowed with good number of applications in electro-optic and microelectronic devices. Organic crystals are known to have high damage threshold, high optical transparency and high effectiveness of frequency conversion [1, 2]. Over the years, researchers across the globe have carried out a series of systematic experimental and theoretical analyses on organic crystals as well as metal ion doped crystals [3–5]. SA compound shows an anionic fraction and
* S. A. Martin Britto Dhas [email protected] 1
Department of Physics, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamilnadu, India
2
Department of Physics, Kings Engineering College, Sriperumbudur, Chennai 602 117, Tamilnadu, India
3
Department of Physics, Abraham Panampara Research Centre, Sacred Heart College, Tirupattur 635 601, Tamilnadu, India
a cationic fraction with the symptomatic of Zwitter ionic structure. SA crystal has orthorhombic structure and it belongs to the space group of Pbca [6]. SA is also used in radiation therapy dosimetry, in addition to that, it is isotropic and its result is maximum about 100 ± 30 mGy. Amongst a lot of examined dosimeters, SO3− anion has been extensively utilized by different authors [7, 8] and it has been confirmed to have reliable dosimetric properties [9]. Crystallization is one of the important methods possibly owing to the high attra
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