Surface, structural and optical investigation on Poly Vinyl Alcohol (PVA)/Bi2WO6 nanocomposite films

Article Type:
Research/Original Article (دارای رتبه معتبر)
Bismuth tungstate (Bi2WO6) emerged as one of the most capable chromogenic compounds among transition metal oxide having wide opto-electronic applications. It is an n-type semiconducting material having bandgap around ~2.7eV. Conversely, NanoComposite (NC) materials have been investigated in order to tailor the properties polymers and also to widen the applications. In this context Poly (vinyl alcohol)/ Bismuth tungstate (PVA/Bi2WO3) NC films were prepared with various weight ratio of Bi2WO6 content viz.0, 0.1, 0.2 0.4, and 0.8 wt%. The solution combustion method was employed to prepare Bi2WO6 nanoparticles (NPs). Subsequently, synergistic effect of polymer matrix and Bi2WO6 NPs is characterized and analysed to estimate the enhanced properties. The surface morphology of the NC’s films was explored by Scanning Electron Microscopy (SEM). Elemental analysis is carried out using EDAX. The formation of polymer NC and its microstructural properties were investigated by X-ray diffraction technique and it is revealed that there is formation of orthorhombic phase for Bi2WO6 NPs with an average size of 35nm. Interaction of NP and PVA is studied using FT-IR spectrometer. The optical constants were evaluated by UV-visible spectrometer and it was found that NC films bandgap energy varied from 5.4 eV to 2.85eV for direct and from 4.57eV to 2.38eV for indirect bandgap. It is anticipated that these unique organic–inorganic NC materials are the emerging functional materials in the field of opto-electronics.
International Journal of Nano Dimension, Volume:13 Issue: 3, Summer 2022
267 to 281  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 1,390,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
In order to view content subscription is required

Personal subscription
Subscribe for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!