900960
Graphene ink for spin/spray coating photonically annealable
for spin-coating, spray-coating, photonic annealing
Synonym(s):
Conductive ink, Graphene ink
About This Item
Quality Level
form
dispersion (black)
greener alternative product characteristics
Design for Energy Efficiency
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sustainability
Greener Alternative Product
concentration
1.8-3.0 wt. % solids
resistivity
0.003-0.005 Ω-cm, sample prepared by spin-coating at 2000 rpm/30 s for 5 coats, followed by thermal annealing at 300 °C in air for 30 minutes
particle size
≤3 μm
viscosity
2-8 mPa.s(25 °C) (1000 s-1)
bp
78 °C (ethanol)
density
0.78-0.88 g/mL at 25 °C
greener alternative category
, Enabling
Related Categories
General description
Application
Spin-coating a single layer at 2000-5000 rpm yields a final film thickness of 40-60 nm. To achieve thicker films, multiple layers can be applied without a baking step. This is recommended over using a lower spin speed to maintain film uniformity. This ink should work on almost any substrate.
Electrical performance:
Following a baking step at 300 °C for 30 minutes in air, the spin-coated films exhibit sheet resistance of 300-800 Ω/sq, corresponding to a resistivity of 0.003-0.004 Ω−cm. With 5 coats at 2000 rpm, a 200 nm thick film with a sheet resistance of 160 Ω/sq. is obtained.
General guidelines:
Ethanol is recommended for cleaning up the ink and dried films, as well as dilution. Bath sonication (5-10 minutes) of the ink prior to use is recommended following extended periods of disuse.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
54.5 °F - closed cup
Flash Point(C)
12.5 °C - closed cup
Regulatory Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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