Cover Page September-2019-Advanced Materials Letters

Advanced Materials Letters

Volume 10, Issue 9, Article ID 651-655, September 2019
About Cover

Materials modelling has established itself as an essential analysis not only to study the insight of complex physical phenomena appearing in the soft or condensed matter but also to realize the emerging trend of 'reverse engineering' as a keystone for technological innovations. The cover photo of this September 2019 issue describes the bio interaction between graphene and enzyme protein for bioelectronics applicable in battery, fuel cell and biosensing applications and dedicated to celebrating the 6th anniversary of Nobel Prize in Chemistry on “Multiscale models for complex chemical systems”.


Growth, Linear and Nonlinear Optical Studies of D-Tartaric Acid Crystal

M. Esthaku Peter*1, 2, Getahun Leliso1, Seblewongel Getachew3, Betelhem Alemu4, Tirngo Abay5, Eleni Binalfeus6

1Department of Physics, Dilla University, Dilla, Ethiopia

2Department of Physics, Easwari Engineering College, Chennai, India

3Department of Physics, Salale University, Ethiopia

4Department of Physics, Bonga University, Ethiopia

5Department of Physics, Raya University, Ethiopia

6Department of Physics, Enjibara University, Ethiopia

Adv. Mater. Lett., 2019, 10 (9), pp 651-655

DOI: 10.5185/amlett.2019.0028

Publication Date (Web): Jun 18, 2019

Email: mesthakupeter@gmail.com

Abstract


A single crystal of D-Tartaric acid, a stereoisomer of tartaric acid, has been grown by a slow solvent evaporation technique. Good crystals to be used for optical testing were harvested after multiple recrystallizations, whose maximum size is 30x20x4mm3. In view of finding second harmonic generation efficiency and properties supporting for a nonlinear optical device, the grown crystals were subjected to various characterizations. Firstly, the compound was confirmed by single crystal and powder X-ray diffraction analysis and thereafter further studies were undertaken. Various possible functional groups available in the grown crystalline compound were identified using Fourier transform infrared analysis and reported. The second harmonic generation, a nonlinear optical property of a crystal, was studied and compared with standard KDP crystal. The percentage of linear optical transmittance in the ultraviolet, visible and infrared radiation of wavelength ranging from 200 to 1100 nm was studied and explained in detail. Thermal studies such as Thermogravimetric and Differential thermal analysis were carried out to find the thermal stability of the crystalline material. Vicker’s microhardness testing was made on the as-grown crystalline surface to find the surface hardness, yield strength and other related mechanical properties of the crystal. © VBRI Press.

Keywords

X-ray diffraction, Growth from solutions, Organic compounds, Nonlinear optic materials, Harmonic generators.

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