“…PVA is a linear organic polymer that possesses excellent optical properties, biocompatibility, biodegradability, and non-toxicity, and thus can be widely used in various applications water soluble, excellent optical transmission, non corrosive and has good film-forming ability. These properties, especially their optical properties such as the energy gap and refractive index, enhance their industrial and technological uses devices, optoelectronic materials, super capacitors, several types of sensors, ophthalmology and textile industry [5][6]. PVA is of great interest because it is relatively cheap, widely accessible, and has hydrophilic properties.…”