Biological skin inspired temperature/pressure bimodal tactile sensing: materials, device and systems

As significant components of intelligent sensing technology, flexible tactile sensors have attracted widespread attention in recent years. In particular, bimodal sensors that can mimic the sensing functions of biological skin have been used to monitor external pressure and temperature in real time, showing promising potential in fields such as the Internet of Things (IoT) and artificial intelligence (AI). The recent progress of biological skin inspired temperature/pressure bimodal sensors is introduced and discussed in terms of bionic design principles, material selection, device design, system integration and applications. Additionally, through an in-depth analysis of the development of temperature/pressure bimodal sensors, the remaining challenges and opportunities for temperature/pressure bimodal sensors are discussed in detail.