Zinc Oxide Ink
The ZnO ink from infinityPV is optimized for large-scale fabrication of electron transport layers (ETL).
ZnO (zinc oxide) based inks have been developed over a number of years and comprise a refined material that answers the specific needs of the quoted application in terms of both processing method, processing conditions and application.
The inks are reactive but in spite of this they have a long shelf life (several years, see video) provided that the storage conditions and handling methods detailed in the data sheets and the application notes are followed.
All ZnO inks are produced by infinityPV.
Key Features
Electron transport layer (ETL) for
Organic solar cells (OPV)
Perovskite solar cells
Doped and undoped ZnO
Low curing temperature (< 140°C)
Fast curing times
Processing methods
Slot-Die Coating (SD)
Spin coating (SC)
Doctor blading (DB), knife coating (KC)
Gravure printing (GR)
Rotary screen printing (RSP)
Spray coating (SC)
Specifications and Cost
Doped ZnO | Doped ZnO | ZnO (2.8% w/v) | ZnO (5.6% w/v) | ZnO | |
---|---|---|---|---|---|
Solvent | Water | Methanol | Acetone (or IPA) | Acetone (or IPA) | Alcohol |
Can be diluted | No | No | Yes | Yes | No |
Can be concentrated | No | No | Yes | Yes | No |
Solid content (g l-1) | - | - | 28 | 56 | - |
Viscosity at 20 oC (mPa s) | 1.7-1.8 | 0.45-0.50 | < 0.3 (1.9) | < 0.3 (1.9) | 27-30b |
Dry thickness @ wet thickness (nm @ µm) | 100 @ 10 | 100 @ 10 | 50 @ 10 | 100 @ 10 | 100 @ 10 |
Recommended wet thickness (µm) | 7-12 | 7-10 | 7-12 | 7-12 | 10-20 |
Web speed in R2R (m min-1) | 1-20 | 0.2-60 | 0.2-60 | 0.2-60 | 5-60 |
Drying temperature (oC) | 80-140 | 20 | 20 (20-70) | 20 (20-70) | 50-80 |
Curing temperature (oC) | 120-140 | 120-140 | 120-140 | 120-140 | 120-140 |
Curing time (min) | 5-10 | 5-10 | 0-2 | 0-2 | 2-4 |
Application | ETL for ITO (OPV) | ETL for ITO (OPV) | ETL (OPV/Perovskite) | ETL (OPV/Perovskite) | ETL (OPV) |
Available in sealed ampoule | No | No | Yes | Yes | No |
Sheet-to-sheet (S2S): | |||||
Spin coating | + | + | + | + | - |
Dr. Blading | + | + | + | + | - |
Slot-die | + | + | + | + | - |
Spray | + | + | + | + | - |
Ink-jet | - | - | +a | +a | - |
Roll-to-roll (R2R): | |||||
Knife | + | + | - | - | - |
Slot-die | + | + | + | + | - |
Rotary screen printing | - | - | - | - | + |
Gravure | - | - | - | - | + |
Ink-jet | - | - | (+)a | (+)a | - |
a) depending on system and available in typical ink jet solvent mixtures with viscosities in the 10-30 mPas range
b) other viscosities available on request
IPA = isopropanol
NA = Not available
Get a Quotation
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