Layer-by-layer inkjet printing to make a graphene-based film for a chemical sensor

Scientists in China have used graphene oxide and polyoxometalate solution as ink to fabricate a composite film with a photo printer.

The film shows a linear relationship between the coverage and number of printing cycles, which indicates a steady-state film growth. The team performed a proof-of-principle experiment on the application of the composite for electrochemical sensing and successfully detected dopamine, with increasing current response to increasing concentration. Dopamine is a neurotransmitter, levels of which are monitored to diagnose Parkinson’s disease.

Graphene films are used for transistors and sensors, and there is a need for efficient and facile strategies for large-scale fabrication; this method has potential in terms of reducing material waste, lower costs and scalability.

Read more about this exciting work in the full PCCP article:

Layer-by-layer inkjet printing of fabricating reduced graphene-polyoxometalate composite film for chemical sensors
Hui Zhang, Anjian Xie, Yuhua Shen, Lingguang Qiu and Xingyou Tian
DOI: 10.1039/C2CP41561E

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One Response to “Layer-by-layer inkjet printing to make a graphene-based film for a chemical sensor”

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