Inkjet printing of electrochemically-exfoliated graphene nano-platelets
2016 (English)In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 220, 318-322 p.Article in journal (Refereed) Published
In this study, we report on a facile method of inkjet printing of graphene nano-platelets (GNPs). The GNPs are exfoliated from graphite by means of an electrochemical process in an inorganic salt based electrolyte. The electrochemically exfoliated GNPs with oxygen-bearing functional groups exhibit spectroscopic features similar to those of reduced graphene oxides. As a result, ink formulation with such GNPs for inkjet printing readily accomplishes without using stabilizer and various conductive objects are easily fabricated on different substrates by inkjet printing. The as-printed films of the electrochemically exfoliated GNPs deliver an electrical conductivity of 44 S/m, a typical value for as-printed pristine GNP films in the literature. A simple thermal treatment results in an improved DC conductivity by two orders of magnitude to ~2.5 × 103 S/m.
Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 220, 318-322 p.
Graphene; Electrochemical process; Inkjet printing
Other Materials Engineering
IdentifiersURN: urn:nbn:se:uu:diva-298103DOI: 10.1016/j.synthmet.2016.06.029OAI: oai:DiVA.org:uu-298103DiVA: diva2:944440