A simple route towards high-concentration surfactant-free graphene dispersionsShow others and affiliations
2012 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 50, no 8, p. 3113-3116Article in journal (Refereed) Published
Abstract [en]
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, p. 3113-3116
Keywords [en]
Complex methods, Liquid dispersions, Natural graphite, Solvent exchanges, Surfactant-free, Transparent conductive thin films, Volume difference, Dimethylformamide, Dispersions, Distillation, Organic solvents, Graphene
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-95714DOI: 10.1016/j.carbon.2012.03.011ISI: 000303616700057Scopus ID: 2-s2.0-84862812408OAI: oai:DiVA.org:kth-95714DiVA, id: diva2:529127
Funder
StandUp
Note
QC 20120529
2012-05-292012-05-292017-12-07Bibliographically approved