Work

Nonlinear optical parameters and electronic properties of plasma polymerized methyl acrylate thin films

Year: 2024

Type: article

Abstract: and air environments. The values of direct band gap energies increase from 3.30 to 3.41 eV with increasing film thicknesses, whereas the Urbach energy values show in an opposite manner. The Wemple-DiDomenico model was employed to analyze both the oscillator energies ranging from 5.54 to 6.44 eV and the dispersion energies ranging from 10.56 to 12.89 eV. The static linear refractive index showed typical dispersion behavior, with film thickness conforming to Moss's rule. The nonlinear refractive index and 2nd and 3rd order nonlinear susceptibilities decrease with increasing the studied films. The lattice dielectric constant values exceeded the high-frequency dielectric constant, indicating the presence of lattice vibrations and free carriers. Electronic parameters are fluctuating with increasing film thickness. The observed changes in nonlinear optical parameters and electronic properties highlight the potential of PPMA films for applications in photovoltaic and optoelectronics.

Source: Heliyon

DOI: 10.1016/j.heliyon.2024.e39800

Authors: S.D. Nath, A.H. Bhuiyan

Institutions: Khulna University of Engineering and Technology, Bangladesh University of Engineering and Technology, University of Information Technology and Sciences

Language: English

Topic: Nonlinear Optical Materials Research

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,100

Funders: Council of Scientific and Industrial Research, India, Bangladesh Council of Scientific and Industrial Research, Bangladesh University of Engineering and Technology