期刊
OPTIK
卷 124, 期 21, 页码 5111-5115出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2013.03.073
关键词
Growth from solutions; Organic; Single crystal growth; Optical properties; Band gap energy
类别
资金
- Department of Science and Technology, India
A new organic nonlinear optical material 1-(4-fluorostyryl)-4-nitrostilbene (FNS) has been synthesized and single crystals of FNS were grown using solvent evaporation solution growth technique (SESGT) by 2-butanon solvent. Single crystal x-ray diffraction analysis reveals the unit cell parameters of the grown crystal are a = 9.494(4) angstrom, b =9.864(2) angstrom, c = 19.501(7) angstrom and it belongs to monoclinic system with noncentrosymmetric space group. Optical transmittance of the grown crystal has been studied by UV-Vis-NIR spectrum. The optical properties of FNS have been studied by means of optical transmittance measurements in the wavelength range of 190-1100 nm The optical constants were calculated from the optical transmittance (T) data such as refractive index (n), extinction coefficient (k) and reflectance (R). The optical band gap (E-g) of FNS is 3.27 eV with direct transition. The complex dielectric (epsilon) constant of the grown FNS crystal was determined. The second harmonic generation (SHG) efficiency of the grown FNS crystal has been studied by using Kurtz-Perry powder technique and it shows 12 times relatively greater than KDP. (C) 2013 Elsevier GmbH. All rights reserved.
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