Studies on Growth, Thermal, Vibrational And Optical Characterization of a Novel Nonlinear Organic Single Crystal of L-Isoleucinium Hydrogen Maleate Hemihydrates(LIM). (2019)

• Record Type: Journal Article
• Authors: Hemalatha, A.; Deepa, K.; Venkatesan, A.; Suresh Kumar, D.; Madavan, J.; Senthil, S.
• Is Part Of: Materials today. Volume 8:Part 1(2019)
• Page Start: 279
• Page End: 283
• Publication Date: 2019
• Subjects: Single crystal, FT-IR -- FT-RAMAN -- UV-Vis-NIR -- Nd:YAG -- TGA/DTA -- Laser Threshold Damage -- Photoluminescence; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.02.112
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: L-Isoleucinium Hydrogen Maleate Hemihydrate (LIM) nonlinear optical single crystal was grown by the slow evaporation solution growth method using water as solvent at room temperature. The grown crystals were analyzed by the single crystal X ray diffraction analysis which proved that the grown LIM crystals belongs to monoclinic system with the space group P21 . FT-IR spectroscopy studies were carried out to understand the presence of various functional groups in the LIM Crystal and it was confirmed by FT-RAMAN spectroscopy. The second harmonic generation (SHG) efficiency measurement of LIM crystals were confirmed by Kurtz and Perry powder technique. Thermo-gravimetric and differential thermo gravimetric studies reveal good thermal stability of the material. The optical transparency has been studied using UV-vis-NIR spectroscopy and the band gap energy was found out from the absorption studies. The laser damage threshold of the crystal was found to be 0.15 GW/cm 2 . Photoluminescence spectrum shows emission peak around 415-435 nm and it is suitable for fabricating blue light emitting diodes..