Synthesis and Optical Characterization of Ag/PVA Nanocomposites Films

Abstract

Silver-Poly vinyl alcohol Ag/ PVA nanocomposite films were prepared by casting method at room temperature with different amount of AgNO 3 solution (0.001, 0.0015, and 0.002ml). The prepared nanocomposites were characterized using UV-VIS spectrophotometer and the optical properties were investigated in the wavelength range 300-800 nm. The absorption peaks showed a shift towards higher wavelength with increasing AgNO 3 concentration while the energy band gap and absorption edges shifted towards lower energies with the increase of AgNO 3 concentration.