Thermal, mechanical, and optical studies of NaBr-added l-alanine crystal

Growth and Characterization of Promising Nlo Crystal: Meta Nitroaniline

“…This thermal phenomenon is attributed to the degradation of the organic entity, well confirmed by the consistent residue of the crystal at the end of the experiment. The sharpness of the endothermic peak shows a good degree of crystallinity of the grown crystal 22 . Thus the grown crystal is a best suitable material for NLO application.…”

A Study Of Growth And Characteristics Of Metal Salt Like Manganese Sulphate [MnSO4] Doped In L Threonine Amino Acid Single Crystal For NLO Application

“…Sivashankar,P. S. Latha Mageshwari used conventional slow evaporation solution growth technique to synthesize highly transparent solitary nonlinear semi organic optical material Bis(l-threonine) copper (II) monohydrate [BLTCM] single crystals [26] .Thirugnanasambandam Jayanalina from K.S.R. College of Engineering,S.…”

“…Examples of NLO materials are Barium borate, cadmium lithium borate, lithium iodate, Monopotassium phosphate, zinc oxide, Tellurium dioxide [39]. These NLO Crystals are further categories to Inorganic NLO -eg KCL, lithium niobate (LiNbO3) or potassium dihydrogen phosphate (KH2PO4) , KDP , (KTiOPO4), Barium metaborate, Methyl parahydroxyl benzoate e.t.c [40], [41].Organic NLO crystal -4-dimethylamino-N-methyl-4-stilbazolium-tosylate(DAST),2-(3-(4hydroxystyryl)-5,5-dimethylcyclohex-2enylidene)malononitrile OH1) [42].Semi organic NLO crystal -BTCC: Bis(thiourea) cadmium chloride, Bis-thiourea cobalt chloride (BTCoC),ATCC triallyl thiourea cadmium chloride, ATMB Triallyl thiourea mercury bromide,TSCCB thiosemicarbazide cadmium bromide, zinc thiourea chloride (ZTC) , 4-aminophenyl)sulphonyl)oxy)zinc(II)chloride Crystal [43], [44], [45], [46], [47] [48], Various techniques like solvent evaporation, slow cooling of the solution, solvent/ non-solvent diffusion, vapor diffusion and sublimation for crystals formation of NLO materials [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [25], [26], [27], [30], [31], [32], [33].Due to chiral carbon atom and no centrosymmetric space group, an Amino acid crystal has excellent NLO and electro optical properties. Biosynthesis pathway in bacteria & plants categorizes Amino Acid to six families as Histidine, Aromatic, pyruvate, serine, aspartate, glutamate family respectively [49].…”