Doping-Regulated Positive Induction of Conductive Filaments in a CNTs/ZnAl-LDHs/ITO Gasistor for Ultrasensitive DMC Detection

CFs. Developed CNTs/ZnAl-LDHs/ITO gasistor exhibits a 28.4 response to 1 ppm DMC at room temperature with a recovery time of ∼1 s, response deviation and humidity stability both below 2%. Besides, stable responses under both single and mixed gas conditions demonstrate excellent DMC selectivity. Finally, a modified parallel model was proposed to elucidate synergistic mechanisms, while COMSOL simulations linked Joule heating to anti-humidity and rapid recovery.