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Updated: May 26, 2026

TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method
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High-performance, single-layer antireflective optical coatings comprising mesoporous silica nanoparticles.

Jonathan Moghal1, Johannes Kobler, Jürgen Sauer

  • 1Department of Materials, University of Oxford, Parks Road, OX1 3PH Oxford, United Kingdom. jonathan.moghal@oxfordsurfaces.com

ACS Applied Materials & Interfaces
|December 23, 2011
PubMed
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Mesoporous silica nanoparticles create robust, single-layer antireflectance coatings. These coatings achieve ultra-low reflectance (<0.1%) and tunable broadband properties for diverse optical applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optics

Background:

  • Antireflectance coatings are crucial for enhancing light transmission in optical systems.
  • Traditional coatings often face limitations in terms of broadband performance, tunability, and fabrication complexity.
  • Mesoporous silica nanoparticles offer unique structural and optical properties for advanced coating applications.

Purpose of the Study:

  • To investigate the use of mesoporous silica nanoparticles for fabricating high-performance antireflectance coatings.
  • To demonstrate the potential for creating mechanically robust, single-layer coatings with simple wet processing.
  • To explore the tunability of optical properties through control of coating structure.

Main Methods:

  • Fabrication of antireflectance coatings using mesoporous silica nanoparticles and a binder material.

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Last Updated: May 26, 2026

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  • Characterization of coating reflectance using spectrophotometry.
  • Analysis of structural properties and their correlation with optical performance.
  • Tuning of the refractive index by adjusting the ratio of nanoparticles to binder.

    • Main Results:

    • Achieved single-layer coatings with reflectance below 0.1%.
    • Demonstrated broadband antireflective properties across a wide spectral range (400 nm to 1900 nm).
    • Showcased the ability to tune the reflection minimum by controlling nanoparticle-binder ratios and structural properties.

    Conclusions:

    • Mesoporous silica nanoparticles are effective for creating robust, low-reflectance antireflectance coatings.
    • Simple wet processing techniques combined with these nanoparticles enable efficient coating fabrication.
    • Control over structural properties provides a pathway for optimizing broadband optical performance and tunability.