A simple route towards high-concentration surfactant-free graphene dispersions
2012 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 50, no 8, 3113-3116 p.Article in journal (Refereed) Published
A simple solvent exchange method is introduced to prepare high-concentration and surfactant-free graphene liquid dispersion. Natural graphite flakes are first exfoliated into graphene in dimethylformamide (DMF). DMF is then exchanged by terpineol through distillation, relying on their large difference in boiling points. Graphene can then be concentrated thanks to the volume difference between DMF and terpineol. The concentrated graphene dispersions are used to fabricate transparent conductive thin films, which possess comparable properties to those prepared by more complex methods.
Place, publisher, year, edition, pages
2012. Vol. 50, no 8, 3113-3116 p.
Complex methods, Liquid dispersions, Natural graphite, Solvent exchanges, Surfactant-free, Transparent conductive thin films, Volume difference, Dimethylformamide, Dispersions, Distillation, Organic solvents, Graphene
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-95714DOI: 10.1016/j.carbon.2012.03.011ISI: 000303616700057ScopusID: 2-s2.0-84862812408OAI: oai:DiVA.org:kth-95714DiVA: diva2:529127
QC 201205292012-05-292012-05-292013-04-16Bibliographically approved