Abdulhussain  Abbas Khadayeir, Khalid Haneen  Abass, Sami  Salman Chiad, Musaab  Khudhur Mohammed, Nadir  Fadhil Habubi, Taghreed  Khalid Hameed, Ismaeel  A. Al-Baidhany, 
    Study the Influence of Antimony Trioxide (Sb<sub>2</sub>O<sub>3</sub> ) on Optical
Properties of (PVA-PVP) Composites,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 22,
    2018,
    Pages 9689-9692,
    ISSN 1816-949x,
    jeasci.2018.9689.9692,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.9689.9692)
    Abstract: In this study, the effect of adding antimony trioxide (Sb<sub>2</sub>O<sub>3</sub>) on optical properties of (PVA-PVP) has been studied. Samples have been deposited by adding different concentration Sb<sub>2</sub>O<sub>3</sub> by using casting method. Absorbance and transmittance spectra has been recorded in the wavelength range 250-1100 nm. The outcome display that the transmittance decreased as Sb<sub>2</sub>O<sub>3</sub> content increased. Optical constants of PVA-PVP-Sb<sub>2</sub>O<sub>3</sub> composites increase with the increasing of Sb<sub>2</sub>O<sub>3 </sub>content. The energy band gap of PVA-PVP-Sb<sub>2</sub>O<sub>3</sub> composites decreased as the Sb<sub>2</sub>O<sub>3 </sub>content increased.
    Keywords: PVA-PVP;antimony trioxide;optical properties;composites;transmittance;samples