Researchers Create Graphene Labels That Can Notify Your When Milk Spoils

Researchers Create Graphene Labels That Can Notify Your When Milk Spoils - Electronics Featured Graphene Other 2D materials

Researchers from Trinity College’s Advanced Materials and BioEngineering (AMBER) in Ireland have manufactured printed transistors consisting entirely of 2-dimensional nanomaterials for the first time. 

These 2D materials combine electronic properties with potentially cost-efficient production, and could even lead to animated newspapers like in Harry Potter’s Daily Prophet, or even labels for perishable food that could notify you when something in your fridge is about to spoil. 

The team used standard printing techniques to combine  nanosheets as the electrodes with two other nanomaterials, tungsten diselenide and  as the channel and separator (two important parts of a transistor) to form an all-printed, all-nanosheet, working transistor.

Researchers Create Graphene Labels That Can Notify Your When Milk Spoils - Electronics Featured Graphene Other 2D materials
Professor Jonathan Coleman exhibits new graphene label

This discovery could mean a transformation in a wide range of fields, allowing to cheaply print a host of electronic devices from cells to LEDs and state-of-the-art epassports.

Continued from Phys.org, “Prof Jonathan Coleman, who is an investigator in AMBER and Trinity’s School of Physics, said, ‘In the future, printed devices will be incorporated into even the most mundane objects such as labels, posters and packaging. Printed electronic circuitry (constructed from the devices we have created) will allow consumer products to gather, process, display and transmit information: for example, milk cartons could send messages to your phone warning that the milk is about to go out-of-date.'”

Coleman continued, “This publication is important because it shows that conducting, semiconducting and insulating 2D nanomaterials can be combined together in complex devices. We felt that it was critically important to focus on printing transistors as they are the electric switches at the heart of modern computing. We believe this work opens the way to print a whole host of devices solely from 2D nanosheets.”

The full story from Phys.org can be accessed below

Researchers Create Graphene Labels That Can Notify Your When Milk Spoils - Electronics Featured Graphene Other 2D materials
Prof Jonathan Coleman and team have fabricated printed transistors consisting entirely of 2-dimensional nanomaterials for the first time. Credit: AMBER, Trinity College Dublin

Publication Journal: Coleman, Jonathan et al., All-printed thin-film transistors from networks of liquid-exfoliated nanosheets, Science, (2017). DOI: 10.1126/science.aal4062 

Source: Phys.org 

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