“…A comparison of the NO2 sensing performances was also performed between Zn-In2O3 nanofibers and previously reported In2O3-based nanostructures, as shown in Table 1 [4,5,12,15,18,19,[30][31][32][33][34]. It is seen that the Zn-In2O3 nanofibers in this work display relatively higher NO2 response and lower operating temperature than some of the reported noble metals modified In2O3 and In2O3-based heterojunction nanostructures [4,5,12,15,18,19,34], although the response of our sensor is lower than several reported In2O3-based sensors [30][31][32][33]. Additionally, the Zn-In2O3 sensor exhibits good NO2 selectivity and relatively high response to NO2 under high RH.…”