Scholarlink

<p>PVA-based Nano systems have drawn a lot of attention due to their unique features and wide-ranging applications. In this investigation, ternary PVA-TiO<sub>2</sub> with varying Silicon Carbide (SiC) concentration (1,2, and 3wt%) nanosystems were produced through a simple and cost-effective solution casting method. The structural and tunable optical properties of the nano systems were characterized by using X-ray diffraction(XRD), Fourier Transform Infrared Spectroscopy(FTIR) and UV-Visible absorption spectroscopy. The XRD analysis of these nanosystems indicate the presence of the tetragonal phase (P 42/m n m) of TiO<sub>2</sub>, with a PVA peak at 19.85°. The average crystallite size, determined using the Scherrer formula, was found to be 24&#xa0;nm. Fourier Transform Infrared (FTIR) spectroscopy depicts the presence of various physiochemical bondings within these Nanosystems and also shows no interaction between the (PVA-TiO<sub>2</sub>) nanocomposite and SiC nanoparticles. From UV-Visible spectroscopy, which covers wavelength from 200 to 800&#xa0;nm, it was observed that increasing the SiC concentration from 1 wt% to 3 wt% led to a reduction in the optical bandgap of PVA from 4.2&#xa0;eV to 2&#xa0;eV. The product ternary (PVA/TiO<sub>2</sub>-SiC) nanosystems can be used in various optoelectronic applications at a low cost.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Production, structural and tunable optical properties of ternary PVA/TiO2-SiC nanosystems for multifunctional optoelectronics fields

  • 期刊论文

  • 发表日期：

    2025年2月17日

查看全文
  • Kiran Thakur,
  • Dinesh Uthra,
  • Ahmed Hashim

摘要

PVA-based Nano systems have drawn a lot of attention due to their unique features and wide-ranging applications. In this investigation, ternary PVA-TiO2 with varying Silicon Carbide (SiC) concentration (1,2, and 3wt%) nanosystems were produced through a simple and cost-effective solution casting method. The structural and tunable optical properties of the nano systems were characterized by using X-ray diffraction(XRD), Fourier Transform Infrared Spectroscopy(FTIR) and UV-Visible absorption spectroscopy. The XRD analysis of these nanosystems indicate the presence of the tetragonal phase (P 42/m n m) of TiO2, with a PVA peak at 19.85°. The average crystallite size, determined using the Scherrer formula, was found to be 24 nm. Fourier Transform Infrared (FTIR) spectroscopy depicts the presence of various physiochemical bondings within these Nanosystems and also shows no interaction between the (PVA-TiO2) nanocomposite and SiC nanoparticles. From UV-Visible spectroscopy, which covers wavelength from 200 to 800 nm, it was observed that increasing the SiC concentration from 1 wt% to 3 wt% led to a reduction in the optical bandgap of PVA from 4.2 eV to 2 eV. The product ternary (PVA/TiO2-SiC) nanosystems can be used in various optoelectronic applications at a low cost.