Third order measurements, thermal and mechanical stress tolerance studies of a nonlinear borate family hybrid crystal towards optoelectronic applications. (2022)

• Record Type: Journal Article
• Authors: Divya, M.; Anushya, G.B.; Joseph Arul Pragasam, A.; Vinitha, G.; Malliga, P.
• Is Part Of: Materials today. Volume 49:Part 5(2022)
• Page Start: 1504
• Page End: 1510
• Publication Date: 2022
• Subjects: Borate family crystal -- EDAX study -- UV Spectral study -- Thermal study -- Vickers microhardness -- Third order measurements; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.07.246
• Languages: English
• ISSNs: 2214-7853

Abstract

Highlights: Thiourea cadmium hydrogen phthalate (TCHB) characterized for optoelectronic applications. Single crystal XRD indicate triclinic crystal structure. UV study signifies less refraction and high transmission through visible and IR region. Vickers microhardness tool employed to study elasticity, fracture resistance, brittleness index and yield strength. Thermal stability analyzed through TG/DTA studies. Second harmonic generation ability and third order nonlinear parameters measured. Abstract: Highly transparent nonlinear Thiourea cadmium hydrogen borate (TCHB) single crystal grown by slow evaporation method is investigated for optoelectronic applications. Single crystal XRD provides details about the lattice structure. FTIR vibrational spectroscopic study identifies the functionals that make up the crystal system. Elemental composition is determined from the EDAX spectrum. UV spectral analysis is performed to determine the transparency range, absorption edge limit, and band gap value at which the crystal can be run. The linear behavior of TCHB is analysed by studying the optical constants from the transmittance values. TG/DTA analysis is done to find out the thermal stability. Vickers microhardness test classifies TCHB as a soft material and elasticity, brittleness and other mechanical properties are assessed from the hardness value. Second harmonic optical study affirms frequency doubling of Nd:YAG laser. Third order measurements, such as, nonlinear absorption co-efficient ( β ), nonlinear refraction ( n2 ) and third order susceptibility ( χ 3 ) are calculated by the Z scan technique.