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Graphene/PEDOT:PSS hybrid ink dispersion in DMF, avg. no. of layers, 1 ‑ 3

Sigma-Aldrich

900442

Graphene/PEDOT:PSS hybrid ink

Graphene dispersion ≥0.2 mg/mL in DMF, sheet resistance 2 kΩ/sq, avg. no. of layers, 1 ‑ 3

Sigma-Aldrich

900448

Graphene dispersion

Graphene ink for inkjet printing, with ethyl cellulose in cyclohexanone and terpineol, inkjet printable

Sigma-Aldrich

793663

Graphene ink

Sigma-Aldrich

900960

Graphene ink for spin/spray coating photonically annealable

dispersion in DMF, avg. no. of layers, 1 ‑ 3

≥0.2 mg/mL in DMF, sheet resistance 2 kΩ/sq, avg. no. of layers, 1 ‑ 3

for inkjet printing, with ethyl cellulose in cyclohexanone and terpineol, inkjet printable

for spin-coating, spray-coating, photonic annealing

900442

Graphene/PEDOT:PSS hybrid ink

900448

Graphene dispersion

793663

Graphene ink

900960

Graphene ink for spin/spray coating photonically annealable

说明

别名

Conductive ink, Electrochemically exfoliated graphene ink, G/PEDOT:PSS, Graphene ink

Conductive ink, Electrochemically exfoliated graphene ink, Graphene ink

inkjetting ink, conductive ink

Conductive ink, Graphene ink

质量目标

100

属性

bp:

213-218 °C (Terpineol)

bp:

78 °C (ethanol)

concentration:

0.2 mg/mL (PEDOT:PSS)
1 mg/mL (electrochemically exfoliated graphene)

concentration:

≥0.2 mg/mL (electrochemically exfoliated graphene)
≥0.2 mg/mL in DMF

concentration:

2.4 wt. % (solid (graphene and ethyl cellulose) in cyclohexanone/terpineol)

concentration:

1.8-3.0 wt. % solids

density:

0.9375 g/mL at 25 °C

density:

0.78-0.88 g/mL at 25 °C

feature:

avg. no. of layers 1 ‑ 3

feature:

avg. no. of layers 1 ‑ 3

feature:

sustainability:

Greener Alternative Product

sustainability:

Greener Alternative Product

sustainability:

Greener Alternative Product

greener alternative category:

Enabling,

greener alternative category:

Enabling,

greener alternative category:

, Enabling

greener alternative product characteristics:

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics:

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics:

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

description:

Dispersion in DMF

description:

sheet resistance:

500 Ω/sq, 20 nm film: 80% transmittance

sheet resistance:

resistivity:

0.003-0.008 Ω-cm (thermally annealed 250°C for 30 minutes, film thickness >100 nm)

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

particle size:

≤3 μm

form:

dispersion (in DMF)

form:

dispersion

form:

liquid

form:

dispersion (black)

SMILES string:

OC(C1=C2C(C3=C(C4=C(C5=C(C6=C(C7=C(C8=C(C9=C(C%10=C(C%11=C(C%12=C(C%13=C(C%14=C(C%15=CC=C%16O)C%16=C%17)C%17=C%18)C%18=C%19C(O)=O)C%19=C%20)C%20=C%21O)C%21=C%22)C%22=C%23)C%23=C%24O)C%24=C%25)C%25=C%26C(O)=O)C%26=C%27)C%27=C2)=C%28C%29=C(C%30=C%31C%28=C%3

SMILES string:

surface tension:

30 dyn/cm

surface tension:

viscosity:

8-15 mPa.s(30 °C)

viscosity:

2-8 mPa.s(25 °C) (1000 s^-1)

Quality Level:

100

Quality Level:

100

Quality Level:

100

用途与安全性

应用

Formulated for Inkjet printing.
Curing Condition: 250-350°C, 20-30min

This ink was tested on polyimide and silicon dioxide substrates.

Spin-coating:
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.

风险与安全

Pictograms: GHS02,GHS08,GHS07