Journal
NANO RESEARCH
Volume 4, Issue 7, Pages 675-684Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-011-0123-z
Keywords
Flexible; inkjet printing; solution-processed; graphene; conductive patterns; applications
Categories
Funding
- National Natural Science Foundation of China [50933003, 50902073, 50903044, 20774047]
- Ministry of Science and Technology of China [2009AA032304, 2011CB932602]
- Natural Science Foundation of Tianjin City [08JCZDJC25300]
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A series of inkjet printing processes have been studied using graphene-based inks. Under optimized conditions, using water-soluble single-layered graphene oxide (GO) and few-layered graphene oxide (FGO), various high image quality patterns could be printed on diverse flexible substrates, including paper, poly(ethylene terephthalate) (PET) and polyimide (PI), with a simple and low-cost inkjet printing technique. The graphene-based patterns printed on plastic substrates demonstrated a high electrical conductivity after thermal reduction, and more importantly, they retained the same conductivity over severe bending cycles. Accordingly, flexible electric circuits and a hydrogen peroxide chemical sensor were fabricated and showed excellent performances, demonstrating the applications of this simple and practical inkjet printing technique using graphene inks. The results show that graphene materials-which can be easily produced on a large scale and possess outstanding electronic properties-have great potential for the convenient fabrication of flexible and low-cost graphene-based electronic devices, by using a simple inkjet printing technique.
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