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Investigating the Photovoltaic Performance in ABO3 Structures via the Nonlinear Bond Model for an Arbitrary Incoming

Hendradi Hardhienata1, Indra Ramdhani1, Husin Alatas1

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This study introduces a new bond model for analyzing second harmonic generation (SHG) in perovskite ABO3 materials. The model accurately predicts SHG intensity and polarization dependence, aiding in the development of advanced optical devices.

Keywords:
arbitrary polarizationphotovoltaic bond modelsecond harmonic generation

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Area of Science:

  • Advanced Material Science
  • Solid-State Physics
  • Nonlinear Optics

Background:

  • Perovskite ABO3 structures are crucial in material science for their optical properties.
  • Applications include solar cells, LEDs, and photodetectors due to tunable band gaps and high absorption.
  • Understanding nonlinear optical phenomena like second harmonic generation (SHG) is key to optimizing these applications.

Purpose of the Study:

  • To present a novel nonlinear phenomenological bond model for analyzing SHG in tetragonal ABO3.
  • To investigate the influence of material symmetry and input light polarization on SHG response.
  • To simplify the study of complex ABO3 structures and their nonlinear properties.

Main Methods:

  • Developed a nonlinear phenomenological bond model for SHG analysis.
  • Studied tetragonal ABO3 structures with arbitrary input light polarization.
  • Explored material symmetry and nonlinear tensorial elements.
  • Introduced an effective SHG hyperpolarizability approach.

Main Results:

  • The model accurately predicts SHG intensity profiles, aligning with experimental data.
  • Observed smooth shifts in SHG intensity peaks and changes in peak numbers with varying input polarization.
  • Confirmed findings with existing rotational anisotropy SHG experiments.
  • Demonstrated the contribution of spatial dispersion to total SHG intensity.

Conclusions:

  • The effective bond vector model simplifies the study of nonlinear properties in ABO3 materials.
  • This approach facilitates a better understanding of SHG, potentially improving photovoltaic performance.
  • The model offers a pathway to optimize optical device applications using perovskite structures.