Hefei University of Technology has successfully developed a new type of carbon nanotube flexible film intelligent driver that can produce large deformation under low voltage and sunlight. The flexible intelligent driver can directly convert external energy such as light, electricity, heat and humidity into mechanical deformation of the device itself, without cumbersome energy conversion device, and has broad application prospects in the field of flexible sensing and the like in the future. It was learned from Hefei University of Technology that the school successfully developed a new type of carbon nanotube flexible film intelligent driver that can generate large deformation under low voltage and sunlight, and simulates the hand movement of human “finger”. Designed and developed a flexible “robot” that generates jumping motion under external light stimulation. The result was published in the internationally important academic journal “Advanced Functional Materials”.
The flexible intelligent driver can directly convert the external energy such as light, electricity, heat and humidity into the mechanical deformation of the device itself, without cumbersome energy conversion device, thus attracting a wide range of research interests of scientists. However, there are still many challenges for simple structures, fast large deformations, multi-source responses, and flexible actuators that can simulate complex motions such as flying and jumping. The research team of Hefei University of Technology cooperated with the Suzhou Institute of Nanoscience of the Chinese Academy of Sciences to design and prepare a carbon nanotube/polymer double-layer film driver with a curled shape, which can be produced from a tube to a straight line under low voltage and light irradiation.
The shape is rapidly deformed and returns to the original curl shape after the electrical signal or illumination is removed. The researchers combined the two ends of the drive to simulate the thumb and middle finger in the “finger”, thus constructing a light-driven jump “robot.” The selective asymmetric deformation of the two ends of the robot under illumination causes the accumulation of elastic potential energy and the instantaneous release, resulting in a jump motion that is more than 5 times its height, and is accompanied by aerial rolling. By changing the direction of the incident light, the robot can also produce a periodic rocking motion similar to a tumbler. “The jump movement involves the storage of energy and the instantaneous release. The flexible bionic intelligent drive material device does not need to be accumulated, stored and quickly released by the structural design of springs, gears, etc., providing a brand new for jumping movement. Way.” Researcher Hu Ying of Hefei University of Technology said that they have further developed crawling robots, bionic robots and bionic flowers that can bloom under the sun. This achievement has broad application prospects in the fields of intelligent bionics and flexible sensing.
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