"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Influence of Mg2+ dopant on structural, optical and mechanical properties of potassium acid phthalate (KAP) single crystals

V. NIRAIMATHI1,* , V. AROULMOJI2, P. M. ANBARASAN3, G. RAJARAJAN2

Affiliation

  1. Department of Physics, Dhirajlal Gandhi College of Technology, Salem – 636 004, Tamilnadu, India
  2. Centre for Research and Development, Mahendra Educational Institutions, Tiruchengode - 637 503, Tamilnadu, India
  3. Department of Physics, Periyar University, Salem – 636 011, Tamilnadu, India

Abstract

The influence of dopant Mg2+ on the growth process, crystalline properties of potassium acid phthalate (KAP) has been investigated. Optically transparent single crystals have been grown from aqueous solution by slow evaporation technique. Powder X-ray diffraction (XRD) and inductively coupled plasma-optical emission spectrometry (ICP-OES) studies confirmed the Mg2+ ion doping into KAP crystals. The modes of vibration in the crystal lattice have been determined by Fourier Transform Infrared (FTIR) analysis. Optical transmission studies were carried out by allowing the UV-NIR ray of wavelength between 190 and 1000 nm, which is to pass through the (010) face of the grown KAP crystals and the results confirm that both the pure and doped KAP single crystal shows good transparency in the entire visible region, which is suitable for optical device applications. Thermogravimetric (TGA) studies reveal that the purity of the sample and no decomposition is observed below the melting point. Microhardness studies reveal that the Mg2+ doped crystals have higher hardness values than that of pristine KAP. Dielectric constant value of Mg2+ doped KAP at 100 Hz was found to be extensively higher than that of pristine KAP. The grown crystals were also subjected to second harmonic generation (SHG) efficiency tests..

Keywords

Potassium acid phthalate, Solution growth, Mg2+ ion doping, Optical properties, Thermal analysis, SHG efficiency.

Submitted at: June 21, 2014
Accepted at: Jan. 21, 2015

Citation

V. NIRAIMATHI, V. AROULMOJI, P. M. ANBARASAN, G. RAJARAJAN, Influence of Mg2+ dopant on structural, optical and mechanical properties of potassium acid phthalate (KAP) single crystals, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 1-2, pp. 205-210 (2015)