The basic idea of electronic skin is to combine sensing with signal transmission and processing, make it into various shapes and stick it on the skin surface, even on the surfaces of buildings, airplanes, robots and so on, so as to realize the corresponding functions. The key point of this technology lies in a kind of composite material called QCT, which was developed by technicians of MIT. Other similar inventions include electronic skin developed by Japan and Philips.

Just at the beginning of the first half of the year, Bao Zhenan's scientific research team announced that after 8- 10 years' efforts, it had achieved a new breakthrough in manufacturing technology in flexible electronics, and successfully developed a high-density and high-sensitivity stretchable transistor array which is easy to mass-produce.

"In order to realize the new model of electronic skin, we should start with the development of new electronic materials, and then focus on solving technical problems after having electronic materials." Bao Zhenan explained: "There are many layers of different materials in integrated circuits. These different materials must be made into different small shapes and then stacked one by one. The whole process has dozens to hundreds of steps, and many technical difficulties need to be overcome.

From the application point of view, electronic skin can be applied in many aspects and has great value.

"For example, in the medical field, electronic skin can detect whether the indicators of the human body are normal from sweat; If it is installed on patients' artificial limbs, it will give them the same feeling as normal people. There are also some stretchable materials with very strong hardness and good self-repair and renaturation functions. These materials can be used in lithium batteries, so that lithium batteries have high capacity and can be continuously charged and discharged for a longer time. These are all early applications that can be realized. "BaoZhenNa gave an example.

However, Bao Zhenan also mentioned that from the application point of view, electronic skin needs to find an application roadmap. The road map must start from simple application, using some existing invented materials and devices, and then gradually develop into more and more complex systematic applications, and developing application prospects is also a very important direction.