cover

Experimental and Theoretical NANOTECHNOLOGY

About the Journal :

Experimental and Theoretical NANOTECHNOLOGY (ETN) is a multidisciplinary peer-reviewed international journal published four issues a year. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of NANOTECHNOLOGY; with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics and materials science.

ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.



OPTICAL PROPERTIES OF GELATIN/TGS COMPOSITES

Optical properties of Gelatin/TGS composites

Films of pure Gelatin and five Gelatin samples doped with the ferroelectric material triglycine sulphate (TGS) at various concentrations of 2, 4, 6, 8 and 10 wt. %TGS by weight have been prepared using the solvent-casting technique. Ultraviolet-visible (UV-vis) absorption spectra were measured in the range 190-900nm. The UV-Visible spectra show some shift in the absorption edge indicating change in optical band gap energy. The optical transitions were found mainly to be indirect allowed transitions and the optical band gaps (Eopt) were determined. Measuring the absorbance, transmittance and reflectance of Gelatin, TGS and their composites permitted the calculation of the refractive index (n). The refractive index dispersion curve of composite films obeys the single-effective oscillator model (Wemple-DiDomenico model).