Unveiling superior NH3 sensing performance: ultrafast response and enhanced recovery kinetics in Ti3C2Tx/ZnO nano-hybrid sensors with UV-induced Schottky junctions

Under UV, Ti 3 C 2 T x /ZnO sensors showed a response of 88 at 50 ppm NH 3 , with 10 s response and 13 s recovery at 10 ppm, and a 0.1 ppm LOD, arises from Schottky barriers, UV-induced carriers, and stable adsorption–desorption dynamics.