Kelvin probe studies of H2S exposed CuO:ZnO nanowires random networks.

The Kelvin Probe (KP) studies have been carried out on CuO:ZnO nanowires random networks before and after H₂S exposure. The results show that on exposure to H₂S, the work function of the CuO:ZnO NWs increases by 200 meV. Using conductance and KP data, both the components of work function i.e. band bending and electron affinity has been obtained. It was observed that the affinity values changed substantially with H₂S gas exposure. [ABSTRACT FROM AUTHOR]