900450 Aldrich

Graphene dispersion

1 mg/mL in DMF, sheet resistance 4.8 kΩ/sq

Synonym: Conductive ink, Electrochemically exfoliated graphene ink, Graphene ink




5 mL in glass bottle

General description

• Graphene preparation method: electrochemical exfoliation.
• Graphene thickness by AFM: 80%, 1-3 layers.
• Sheet size by AFM: 10 μm.
• Oxygen content: 7.5% (by XPS) (C/O-ratio: 12.3).
• Raman I_D/I_G ratio: 0.4.
• Sheet resistance: 4.8 kΩ/sq.
• Typical properties of films produced thereof (after dry transfer from PTFE-filter):
15 nm film: 85% transmittance, sheet resistance of 16 kΩ/sq (as made), 4.1 kΩ/sq (after 30 min, 200 °C), <1 kΩ/sq (conc. HNO3-treatment).
25 nm film: 73% transmittance, sheet resistance of 8 kΩ/sq (as made), 2.4 kΩ/sq (after 30 min, 200 °C), <1 kΩ/sq (conc. HNO3-treatment).

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
UN 2265 3 / PGIII
WGK Germany 
Flash Point(F) 
138.2 °F
Flash Point(C) 
59 °C


Certificate of Analysis

Protocols & Articles


Recent Advances in Scalable Synthesis and Processing of Two-Dimensional Materials

1Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA 2School of Materials Science and Engineering, Nankai University, Tianjin, 300350,...
Deep Jariwala,1* Jian Zhu,2 Jung-Woo Seo,3 and Mark C. Hersam3*
Material Matters, 2018, 13.1
Keywords: Absorption, Adsorption, Catalysis, Centrifugation, Chemical vapor deposition, Crystallization, Degradations, Deposition, Diffusion, Electronics, Filtration, Ligands, Materials Science, Microscopy, Nanomaterials, Nucleic acid annealing, Oxidations, Photoexcitation, Photovoltaics, Purification, Recombination, Scanning electron microscopy, Semiconductor, Separation, Solar cells, Solvents, Sonication, Sublimation

Related Content

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Probing Dirac Electron Physics in Graphitic Materials Webinar

Electrons in monolayer graphene are described by massless Dirac electrons, which exhibit unique quantum phenomena due to the pseudospin and Berry phase of the massless electron. In this talk, Dr. Fen...
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Peer-Reviewed Papers


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Video of Printing with Graphene Ink