ABSTRACT
It is shown that polymer and inorganic nanofibers prepared using electrospinning and other methods such as hard- and soft-chemical template methods are able to form highly porous mesh with large surface-to-volume ratio. This means that the use of nanofibers can provide improved humidity-sensor performance, that is, high sensitivity and fast response. The results of the experiments analyzed in this chapter confirm this statement. In addition, in comparison with other 1D nanostructures such as nanorods and nanotubes, nanofibers are continuous, which give them high axial strength, combined with extreme flexibility. Therefore, the membranes assembled by electrospun nanofibers have excellent structural mechanical properties. It is also shown that multiple extra functions can be incorporated into electrospun nanofibers to broaden their significances in applications. Limitations of electrospinning for fabrication of humidity-sensitive materials are also considered.
