Abstract
AbstractOver the past several years, a variety of hardware‐based artificial sensory systems, including artificial skin, electronic noses, and artificial retinas, have attracted considerable research interest in advanced artificial intelligence systems. The integration of sensing and computing functions in single or multiple connected self‐adaptive field‐effect transistor (FET)‐structured sensory devices to implement artificial olfactory systems for in‐sensor computing has recently attracted increasing attention. In this review, the development status of FET‐based gas sensory devices is focused on. The mechanisms of sensory FET devices, gas‐recognition materials, strategies for improving sensing performance, and the integration of sensory devices into the artificial olfactory system are discussed. Finally, the further development of FET‐based sensory devices for artificial olfactory systems and their great potential for next‐generation intelligent sensory systems are discussed in broad fields such as environmental monitoring, health care, and military industries.
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