Crystalline-phase-induced formation of fibre-in-tube TiO2–SnO2 fibres for a humidity sensor†
Abstract
Fibre-in-tube TiO2–SnO2 fibres (FIT-TSF) have been successfully fabricated via a general crystalline-phase-induced formation strategy. The as-prepared FIT-TSF exhibited excellent sensing properties with an impedance change of three orders of magnitude, an ultrafast response time of 5 s, a recovery time of 8 s, and good reproducibility.