Zinc oxide ink for spin coating/slot-die coating

ZnO nanoparticle ink, ZnO ink, Helios′Ink H-SZ41029 semiconductive ink, Zinc oxide suspension, Zinc oxide dispersion
Linear Formula:

Quality Level


Conductivity: 10-8-10-7 S/cm (before illumination) and 10-4-10-3 S/cm (under illumination with UV light)
Valence band: 7.9 ± 0.1 eV
Work function: 4.0 ± 0.1 eV


liquid (dispersion)


light yellow

surface tension

20 mN/m±5 mN/m


<4 mPa.s(20 °C)


≥0.9 % loading (Nanoparticles loading)

General description

  • Helios′Ink H-SZ41029 semi conductive ink developed for the printed electronics is particularly well suited for flexible OLED and OPV.
  • Helios′Ink H-SZ41029 semi conductive ink shows great performance on spin coating and slot die coating and is compatible with various flexible substrates (polyimide, PET, PET/ITO, etc.) but also Glass/ITO.

Features and Benefits

Product benefits:
  • Easy deposition under atmospheric conditions (temperature and pressure).
  • Good optical performances (visible light transmission >90%).
  • Non CMR ink.
  • Compatible with ITO layer and Ag NWs layer.
  • Compatible with most flexible substrates.
  • Low drying temperature making printing onto flexible substrates possible.
  • Thin layers are obtained (20 nm) with low roughness (RMS = 3±1 nm).

Preparation Note

Typical processing guideline:
  • Can be homogenized for 5 minutes in an ultrasonic bath in order to get rid of any aggregates.
  • Drying conditions: Oven, IR oven, vacuum oven.
  • Clean-up solution: Ethanol/Acetone.

Legal Information

Product of Genes′Ink.


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Signal Word


Hazard Statements

Precautionary Statements

Target Organs

Central nervous system


UN1219 - class 3 - PG 2 - Isopropanol, solution

WGK Germany


Flash Point(F)

58.1 °F - closed cup

Flash Point(C)

14.5 °C - closed cup

Certificate of Analysis

Certificate of Origin

Professor Tokito and Professor Takeda share their new materials, device architecture design principles, and performance optimization protocols for printed and solution-processed, low-cost, highly flexible, organic electronic devices.
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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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