@inproceedings{6ef13012a8224ad184a4587ed42ea11c,
title = "Influence of Surface Adsorption on Work Function Measurements on Gold-Platinum Interface Using Scanning Kelvin Probe Microscopy",
abstract = "Surface potential difference (SPD) on freshly coated gold and platinum electrodes have been found to be much smaller than bulk work functions consideration and to be dependent on time. We show these discrepancies arise due to formation of surface dipoles caused by adsorbed contaminants in ambient environments. The process is reversible by gentle annealing consistent with contaminant hypothesis. Examination of potential changes on individual electrodes suggest that the Pt surface is more sensitive to ambient conditions than the Au surface in accordance with their relative chemical activities. The result has great implication for interpretation of Kelvin probe measurements obtained on practical devices exposed to ambient environments.",
keywords = "FORCE MICROSCOPY",
author = "Simon Mugo and Jun Yuan",
year = "2012",
doi = "10.1088/1742-6596/371/1/012030",
language = "English",
volume = "371",
series = "Journal of Physics Conference Series",
publisher = "IOP Publishing",
editor = "G Moebus and T Walther and R Brydson and D Ozkaya and MacLaren and S Donnelly and P Nellist and Z Li and R Baker and YL Chiu",
booktitle = "ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2011 (EMAG 2011)",
address = "United Kingdom",
note = "Conference on Electron-Microscopy-and-Analysis-Group (EMAG) ; Conference date: 06-09-2011 Through 09-09-2011",
}