Role of TiO2/ZnO Nanofillers in Modifying the Properties PMMA Nanocomposites for Optical Device Applications

N. B.Rithin Kumar, Santhosha Acharya, A. Alhadhrami, B. M. Prasanna, S. C. Gurumurthy, Sangeetha Bhat

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study, ZnO and TiO2 nanofillers with different concentrations are integrated into the PMMA matrix on the glass substrate using a cost-effective spin coating technique. XRD investigations show the maximum crystalline complexity of 24.56% crystallinity with a rise in filler concentration up to x = 10 wt%. SEM and EDS studies signify the homogenous distribution and compatibility of nanofillers in the host PMMA matrix. Raman spectroscopy demonstrates the influential transition peak identified at 840 cm−1 for an optimized filler concentration of x = 10wt%. The C=O and C–O of host PMMA are out of plane bending with an estimated PED of 64ηC=O + 16ηC–O, indicating a pivotal role in filler and matrix complex formulation. Optical studies show enhancement in transmittance with a rise in filler concentration up to 10 wt%, offering a maximum value of nearly 85%. The course also emphasizes the solid antireflection nature with a decreased bandgap value to 1.94 eV. The observed upsurge in optical conductivity suggests the number of free charges present in the nanocomposite films. The increase in optical conductivity with a reduced energy bandgap of these PMMA/(15 − x) ZnO (x)TiO2 shows a promising contender for optical device applications.

Original languageEnglish
JournalIranian Journal of Science and Technology, Transaction A: Science
DOIs
Publication statusAccepted/In press - 2021

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mathematics(all)
  • Agricultural and Biological Sciences(all)
  • Physics and Astronomy(all)
  • Earth and Planetary Sciences(all)

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