Avantama N-31

Avantama N-31 is an advanced electron transport material that offers complete resistance to photodegradation with no activation in response to light of ultraviolet (UV) wavelengths. It comprises 7 nanometre (nm) particles of stannic oxide (SnO2) dispersed at a concentration of 2.5 WT% in a mixture of butanols. This formulation offers the highest performance when coated beneath an absorber material. However, it is suitable for generating electronic components in a range of markets via several distinct application methodologies.

If you are looking for a SnO2 formulation that provides higher performance when applied on top of the absorber, consider Avantama N-30. Otherwise, contact us directly if you have any questions.

Electron transport material featuring:
  • Matches ALD coated SnO2 ETL performance
  • No photo degradation
  • No post-treatment needed
  • Very low surface roughness
  • Compatible with silver nanowires
  • Compatible with Perovskite absorbers
  • Long shelf life
  • No damage to absorber/emitter (normal architecture)
Product Number 9076


Particle size (nm)


Work function (eV)


Concentration (wt%)



Mixture of butanols

Viscosity (cP)


Application Methods
  • Spin coating / Doctor blading
  • Slot die
  • Electron injection
  • Electron transport
  • Hole blocking
  • Charge recombination
  • OLED
  • OPV
  • Perovskite PV
  • QLED
  • Printed photodetectors

Costs and delivery

  • Shipping by FedEx courier service only
  • Costs depend on country and shipping weight
  • Delivery time
    • Europe: 1–2 weeks
    • Worldwide: 1–3 weeks
  • Payment by Credit Card, PayPal or direct wire transfer
  • Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.

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