Enhancement of light absorption using Nanoparticles Embedded Double layer Anti-Reflection Coating

Authors

  • Sunil Deka
  • Waleed Mohammed

DOI:

https://doi.org/10.4186/ej.2020.24.1.53 Full article

Abstract

The formation of nanoparticles embedded composite materials is a means for engineering the electrical and optical properties of thin films. This paper proposes the use of gold and silver nano-particles(NPs) to fine tune the effective index of two dielectric layers towards anti-reflection coating applications. Here, the upper layer is MgF2 (magnesium fluoride) and the lower layer is PMMA (Polymethylmethacrylate). The effect of embedding the nano-particles in the PMMA layer on the transmission spectrum is studied while tuning the concentration (volume fraction) and size of particles. With the increase in the size of the nano-particles there is a red shift in the transmission dip. On varying the nano-particle size the peak absorption can be shifted to the desired wavelength. Considering 50 nm silver nano-particle with the volume fraction ranging from 0.001 to 0.05, maximum transmission of light is observed under lower wavelength range of visible spectrum across the novel structure

Keywords:

anti-reflection coating, T-matrix, effective medium theory, nanoparticles, SERS

Affiliations

  • Sunil Deka Bangkok University
  • Waleed Mohammed Bangkok University

Corresponding author: Sunil Deka, dekasunil@rediffmail.com

948 1105

Author Biographies

  • Sunil Deka

    BU-CROCCS, School of Engineering, Bangkok University, Paholyothin Road, Klong Luang, Pathum Thani, Thailand

  • Waleed Mohammed

    BU-CROCCS, School of Engineering, Bangkok University, Paholyothin Road, Klong Luang, Pathum Thani, Thailand

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How to Cite

[1]
S. Deka and W. Mohammed, “Enhancement of light absorption using Nanoparticles Embedded Double layer Anti-Reflection Coating”, Eng. J., vol. 24, no. 1, pp. 53–63, Feb. 2020, doi: 10.4186/ej.2020.24.1.53.

Citations

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Published

2020-02-08

Issue

Vol. 24 No. 1 (2020): Regular Issue

Section

Environment, Energy and Natural Resources

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