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May 6, 2026CoatingsOpen Access

Stacking-Order Effects on Directional Optical Properties of Al2O3/Poly(Methyl Methacrylate) Bilayer Scattering Films

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JLJaram Lim이이호년

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Overview

Experiments show stacking order and composition influence scattering in films, indicating implications for optical applications.

Key Points

  • This work investigates how stacking order and concentration affect the optical properties of bilayer films.
  • Fabricated Al2O3/poly(methyl methacrylate) bilayer films with four concentration pairs by sequential spin-coating.
  • Characterized optical properties using wavelength-dependent transmittance and reflectance measurements.
  • Analyzed haze using integrating-sphere haze decomposition under different illumination scenarios.
  • Bilayers maintained total transmittance of approximately 99% with moderate haze levels of 25%-40%.
  • A notable 15 percentage-point shift in parallel transmittance was observed for reciprocal concentration pairs.
  • Incorporation of a 30 wt% layer resulted in high diffuse transmittance and haze, supporting below 1% visible reflectance for specific configurations.

Cite This Study

Lim et al. (2026) studied this question.

synapsesocial.com/papers/69fa97ce04f884e66b531a27https://doi.org/10.3390/coatings16050546
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