New generation printed electronics can be charged by radio waves

Scientists from the University of Suzhou, Chinese Academy of Sciences, Shanghai University of Technology and King Abdullah University of Science and Technology (KAUST) have developed a new method of manufacturing printed electronics that allows you to create electronic devices with extremely low power consumption and an unusual way of charging – with light and radio waves. According to TechXplore, the approach will make it easier to integrate smart devices into small objects, the environment and even the human body.

The new technology is based on an ambitious thin-film transistor made of carbon nanotubes as the main semiconductor. Scientists explain that the ambipolarity of the chip involves the use of one semiconductor material to carry both negative and positive electrical charges in “deep subthreshold conductivity”. The latter term means that transistors operate at ultra low operating voltages and with minimal power consumption.

According to scientists, electronic circuits made with the new technology can be powered by standard AA batteries for several million years, so little power they consume.

“Our approach to printed electronics can be expanded to create inexpensive, battery-free devices that collect energy from the environment, such as sunlight or electromagnetic waves generated by our cell phones and Wi-Fi-stations,” explains one of the study supervisors, Vincenzo Pecunia.

The scientists do not name specific plans for a new type of printed electronics, but point out that the technology can be used to develop standalone systems, biomedical devices, smart homes and the Internet of Things ecosystem.