Growth and optical studies on L-leucine doped ADP single crystals for non-linear optical applications

Ammonium dehydrogenate phosphate (ADP) is one of the most popular crystals used for nonlinear optical (NLO) applications. ADP crystal is of more appeal due to its piezo-electric property. ADP crystals attract more interest because of their unique nonlinear optical, dielectric and anti-ferroelectric properties. The L-Leucine doped ADP (LLADP) single crystals were grown by slow evaporation method at room temperature. The Crystalline nature of the grown LLADP crystal has been studied by single crystal analysis. A Fourier transform infrared (FT-IR) study confirms the functional groups of the crystals. The second harmonic generation efficiency of the crystals was determined by NLO studies. The UV-visible study confirms the wide optical transmittance window for the doped crystals imperative for optoelectronics applications. The electrical properties of the grown crystal have been analyzed by dielectric constant and dielectric loss with frequency. TGA/DTA analyses were carried out to characterize the melting behaviour and stability of the title compound. (C) 2017 Elsevier Ltd. All rights reserved.