Buffer Layer Starter Kit

A collection of Avantama's most versatile and robust inks for charge selective layers of both hole and electron transporting type. The starter kit contains two ETL inks (AZO and SnO2 based) as well as two HTL inks (NiO and ATO (Sb-doped SnO2) based), all optimized for lab scale coating processes but also applicable for slot die coating. For larger amounts of each product please be referred to the respective product pages (Avantama N21-X, Avantama N-31, Avantama P-21 and Avantama P-40).

Collection of 10ml samples of four ink types:
  • Avantama N-21X (Prod. 8046, 2.5wt% AZO in mixture of alcohols)
  • Avantama N-31 (Prod. 9076, 2.5 wt% SnO2 in mixture of butanols)
  • Avantama P-40 (Prod. 10095, 2.5wt% ATO (Sb-doped SnO2) in butanols)
  • Avantama P-21 (Prod. 10128, 2.5wt% NiO in ethanol)
Product Number 10011


Particle size (nm)


Work function (eV)


Concentration (wt%)




Viscosity (cP)


Application Methods
  • Spin coating / Doctor blading
  • Slot die
  • Hole injection
  • Hole transport
  • Electron injection
  • Electron transport
  • Hole blocking
  • Electron 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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