1. Home
    2. Journals
    3. Bulletin of Materials Science
    4. Volume 45
    5. All articles

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0245

    • Keywords

       

      PFO; PMMA; XRD; FTIR; fluorescence.

    • Abstract

       

      In this study, a dielectric polymer PMMA (poly(methyl methacrylate) is doped with the light-emitting polymer PFO (poly(9,9’-di-n-octylfluorenyl-2,7-diyl) by the solution casting method. The composite films were subjected to different characterizations such as UV–visible and fluorescence spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry, dielectric analysis and conductivity measurements. UV–visible and fluorescence spectroscopy reveal that 1 wt% of PFO in PMMA is the critical composition for the composite films as it has the maximum intensity of emission as evidenced in fluorescence spectra. The XRD and FTIR analyses confirm the complex formation between PMMA and PFO, and the TGA affirms it. The measurements of dielectric parameters, ac conductivity and ac impedance clearly affirm the critical composition of 1 wt% of PFO in PMMA as a percolation threshold.

    • Author Affiliations

       

      VINAYAK S BHAT1 2 S B KAPATKAR2 ISHWAR NAIK3 SHREEDATTA HEGDE3

      1. Department of Physics, Dr. A. V. Baliga College of Arts and Science, Kumta 581362, India
      2. Department of Physics, KLE Technological University, Hubballi 580021, India
      3. Department of Physics, Mangalore University, Mangalore 574199, India

    • Dates

       
      Published
      7 December 2022
      Manuscript received
      7 February 2022
      Accepted
      13 August 2022
      Final version published online
      7 December 2022

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.

Contact | Site index