| AVS 61st International Symposium & Exhibition | |
| In-Situ Spectroscopy and Microscopy Focus Topic | Wednesday Sessions |
| Session IS+2D+MC+NS+SP+SS-WeA |
| Session: | In-Situ Scanning Microscopy |
| Presenter: | Chris Goodwin, University of Delaware |
| Authors: | C. Goodwin, University of Delaware A. Boscoboinik, Brookhaven National Lab C. Arble, University of Delaware J.T. Newberg, University of Delaware |
| Correspondent: | Click to Email |
The extent to which ZnO hydroxylates under ambient conditions can significantly influence catalytic properties. Thus, it is critical to understand the composition of different ZnO terminations as a function of relative humidity (RH) in order to elucidate the true interfacial surface terminations. In this talk we present results of ambient pressure XPS (APXPS) for water exposures to a ZnO(10-10) single crystal. It will be shown that ZnO(10-10) extensively hydroxylates at the interface, and both molecular and dissociative water increase as the RH increases. These results are consistent with simulations in the literature that highlight the efficacy for ZnO(10-10) to dissociate water.