Fabrication of nanofibrous sensors by electrospinning

This article reviews the techniques and applications of electrospinning for the fabrication of nanofibrous sensors. Considering that nanosensors require a large specific surface area and a continuous structure for the conduction of current signals, electrospun nanofibers have the dominant advantage. The device preparation is mainly divided into surface treatment and high-temperature sintering, which are, respectively, used for preparing composite conductive fibers and inorganic semiconductor fibers. Typical applications include pressure sensing, gas sensing, photoelectric sensing, and temperature sensing. In addition, nano-selfpowered systems have been mentioned to emphasize the good performance of smart nanosystems that do not require external power. In addition, we have summarized some existing methods and suggestions for increasing the specific surface area and presented constructive ideas for the future development of these devices.