• Neha Garg
• Minal Bafna Sushila
• Sushila

This study investigates the optical properties of stannous chloride (SnCl2) doped PES (poly ether sulfone) flexible thin films, prepared by casting method with different concentration (1%,2%, 5% and 10%) of SnCl2 in PES. For this purpose the absorbance (A) and transmittance (T%) spectra of the synthesized films were recorded using UV-V-IS spectrophotometer in the wavelength range (300-1100) nm. The fundamental optical parameters viz. optical band gap energy, absorption coefficient (), extinction coefficient (), finesse coefficient (F), refractive index (n), real and imaginary parts of dielectric constant (randi) and optical conductivity () have been evaluated. The optical conductivity, refractive index and dielectric constant in the doped samples are significantly affected by tin chloride concentration and are decisive for many applications.

dielectric constants, ac conductivity. Electrical properties, PMMA-KMnO4 Composite films.

"Study of Optical properties of stannous chloride (SnCl2) doped Poly ether sulfone (PES) composite films", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 2, page no.437-442, February-2018, Available :http://www.jetir.org/papers/JETIR1802070.pdf

"Study of Optical properties of stannous chloride (SnCl2) doped Poly ether sulfone (PES) composite films", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 2, page no. pp437-442, February-2018, Available at : http://www.jetir.org/papers/JETIR1802070.pdf