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Transparent High Refractive Index Sols

Transparent high refractive index materials are of interest as a coating additive for reducing reflection loss in a number of technologically important applications such as coatings for TFT/LCD displays and LED lighting. NYACOL® offers five material types which are relatively high in refractive index and the particle size is small enough that the dispersion is optically transparent.

We developed an arbitrary method for estimating the refractive index and density of the solid phase of our sols. This data is presented below. In formulating the high RI coating, the user will need these parameters to determine the amount of our sol to use to meet a given RI target. The choice of oxide will depend on the chemistry of the coating and the coupling agent options available.

Product NameOxideSol Wt.%Solid Phase RISolid Phase DensityCarrier
NYACOL® SN15SNO2151.84.25Water
NYACOL® JL627SSb2O5281.703.09Water
NYACOL® Zr10/15ZrO2151.864.01Water
NYACOL® TiSol ATiO2202.073.22Water
NYACOL® Ceria acetateCeO2202.025.09Water
NYACOL® Zirconia acetateZrO2201.682.74Water
  • Product Name Wt. % Oxide Particle Size Carrier Applications
  • NYACOL® SN15 15 15 nm Water For use as a binder in ceramic and catalyst applications, a passivation agent, an anti-scuff agent on glass and a potential conductor in glass. Download
    Data Sheet
  • NYACOL® JL627S 27 5 nm Water Nickel passivation additive for FCC. Download
    Data Sheet
  • NYACOL® Zr10/15 15 5 – 15 nm Water ZrO2 products designed for use as a high-temperature refractory, and as a ceramic binder with or without yttria as a stabilizer. Download
    Data Sheet
  • NYACOL® TiSol A 15 20 nm Water Aqueous dispersion of TiO2 designed for use in coatings and catalyst applications. Provides a high index of refraction for coating and excellent transparency as a result of the small particle size. Can be used as a transparent UV absorber. Download
    Data Sheet
  • NYACOL® Ceria acetate 20 Water NYACOL CEO2 (Cerium Oxide) is designed for use in automotive and other catalyst production, as a zirconium stabilizer in ceramic applications, and in glass polishing and coating applications. Download
    Data Sheet
  • NYACOL® ZRO2(AC) Acetate Stabilized 20 5 - 20 nm Water Acetate stabilized ZrO2 for use as a binder in ceramic and catalyst applications and an anti-scuff agent on glass. It also provides a high index of refraction for coatings and excellent transparency as a result of the small particle size. Download
    Data Sheet
Looking for More Options?

In some cases our standard materials are not suitable for a customer’s particular application, or a different composition is required. In these cases, we will consider a custom development project with our customers. We generally proceed under a Non-Disclosure Agreement and we will do the project in such a way that the material can be readily scaled up.

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