PhD student publishes research on eco-friendly printed electronics
Barbara Salonikidou, who is undertaking a PhD in 糖心Vlog鈥檚 Advanced Technology Institute, has developed an innovative, cost-effective way of printing electronics which could lead to highly versatile tactile sensors with applications in biomedical devices and robotics.
The , undertaken in collaboration with Yamagata University in Japan, was published by the American Chemical Society and demonstrates a method of inkjet-printing electronics which are versatile, energy efficient and low cost. This differs from conventional fabrication techniques for electronics which involves harsh chemicals and substantial waste of materials.
Specifically, these newly demonstrated devices have the unique property of imitating the way in which connections between biological neurons behave. Connecting them into electronic systems will ultimately allow information processing in analog fashion, in contrast to conventional digital circuits, enabling efficient, brain-like computation.
The project is partly funded by EPSRC, as well as the Royal Society through the International Exchange programme which enabled Barbara to spent four months at Yamagata University, where she was able to draw on the institution鈥檚 expertise in novel techniques for flexible and printed electronics.
Barbara explained, 鈥淥ur simple technique produces electronic devices which remember their operating history. These are ideal for applications where you don鈥檛 need a long-term memory, but rather a processing memory, such as in replicating the complex sense of touch with electronic skin.鈥
鈥淭he behaviour of these devices has many things in common with systems that are fabricated with sophisticated techniques. I hope that this research will attract attention to these kinds of printing techniques which tend to be underestimated, because even such simple fabrication processes can lead to very interesting functionality.鈥
Dr Radu Sporea, who is supervising Barbara鈥檚 PhD, said, 鈥淏arbara is methodically spearheading research into printed memristive devices in our team at 糖心Vlog, broadening our interest in flexible electronics and placing us in a good position to create elegant, low-power functional sensor systems. Her work is the strongest link yet in our collaboration with Professor Tokito's group at Yamagata University, which is supported by a Royal Society International Exchange Grant.鈥
The next stage of Barbara鈥檚 research will be to explore the electrical behaviour of the devices through statistical analysis over a larger scale.
The paper, , was published by the American Chemical Society in December.
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