Abstract
The work function for PbS, PbSe, and PbTe has been measured in the temperature range of 100–350° C in oxygen and in vacuo. It was established that oxygen increases the work function for both PbS and PbSe and decreases the work function for PbTe. It was concluded that the process of oxygen chemisorption is followed by the formation of a heterophase layer. According to thermodynamic considerations, PbSO4, PbSeO4, and PbTeO4 are the most stable compounds as a reaction product of the oxidation of lead salts under the conditions studied.
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Supported in part by the National Science Foundation through a postdoctoral fellowship given to J. Nowotny under Grant GK-1137 at Northwestern University.
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Galat, J., Haber, J., Nowotny, J. et al. Studies on the interaction between oxygen and lead chalcogenide surfaces. Oxid Met 9, 497–506 (1975). https://doi.org/10.1007/BF00603856
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DOI: https://doi.org/10.1007/BF00603856