Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 51, Issue 13, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aaaf5a
Keywords
graphene oxide and graphene inks; water-based; thermal bubble inkjet printing
Categories
Funding
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09020302]
- National Natural Science Foundation of China [61575216]
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Stable-jetting water-based graphene oxide (GO) and graphene (GR) inks without any surfactant or stabilizer are prepared from an unstable-jetting water-based starting solvent, with many thermal bubble inkjet satellite drops, by simply increasing the material concentration. The concentration-dependent thermal bubble inkjet droplet generation process is studied in detail. To overcome the low concentration properties of water-based thermal bubble inkjet inks, the substrate temperature is tuned below 60 degrees C to achieve high-quality print lines. Due to the difference in hydrophilicity and hydrophobicity of the 2D materials, the printed GO lines show a different forming mechanism from that of the GR lines. The printed GO lines are reduced by thermal annealing and by ascorbic acid, respectively. The reduced GO lines exhibit electrical conductivity of the same order of magnitude as that of the GR lines.
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