Optical analysis of methyl violet thin films/polymeric substrate for flexible organic technology
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Optical analysis of methyl violet thin films/polymeric substrate for flexible organic technology A. Abdel‑Galil1 · M. A. Assiri2 · I. S. Yahia3,4,5 Received: 18 January 2020 / Accepted: 27 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract In this research, the spin coating as a low-cost non-vacuum preparation technique was used to deposit high-quality thin films of Methyl Violet-10B (MV-10B) with different thicknesses on flexible polymeric substrates. X-ray diffraction technique was applied to distinguish the crystal structure of MV-10B films with different thicknesses. The X-ray diffraction patterns revealed the amorphous nature of all MV-10B films on the polymeric substrates. The optical band gap (direct and indirect) was measured using Tauc’s relationship with the various thicknesses of MV-10B films. The linear optical parameters such as refractive index, dielectric constant, and loss were investigated with the difference in thickness of these films. The dispersion parameters of the studied films were estimated according to the single oscillator model provided by Wemple and Di-Domenico. As regards the film thickness, the spectral distribution of linear and nonlinear susceptibilities of MV-10B films was studied. The optical limiting behavior of MV-10B films on the polymeric substrates also has been examined to know how to control the laser beam power as a function of the film thickness. Methyl violet 10B thin films/polymeric substrate for flexible organic technology and Laser power attenuation, and flexible CUT-OFF laser filters in optoelectronic devices. Keywords Methyl violet-10B · Polymeric flexible substrate · Crystal structure · Optical properties · Linear and nonlinear optics · Laser power attenuation
* A. Abdel‑Galil [email protected]; [email protected]; [email protected] 1
Solid State Physics and Accelerators Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
2
Advanced Materials and Green Chemistry Lab, Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
3
Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
4
Advanced Functional Materials & Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
5
Nanoscience Laboratory for Environmental and Bio‑Medical Applications (NLEBA), Semiconductor Lab, Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt
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A. Abdel‑Galil et al.
1 Introduction Methyl violet is a class of organic compounds that are commonly used as dyes. The color of the dye can be changed depending on the number of methyl groups attached. Methyl violet-10B (MV-10B) or crystal violet has six methyl groups according to the chemical formula C25H30ClN3, as shown in Fig. 1. MV
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