Electronic work function modulation of phosphorene by thermal oxidation
نویسندگان
چکیده
Abstract In this study, we evaluate the variation of work function phosphorene during thermal oxidation at different temperatures. The ultraviolet photoelectron spectroscopy results show an N-shaped behaviour that is explained by process and dangling-to-interstitial conversion elevated exfoliation degree x-ray confirm formation native oxides in top-most layer passivates material. Ex-situ XPS reveals full monolayers temperatures higher than 140 °C, but few-layer withstands even up to 200 °C with slight modifications A 2 g / 1 B 2g vibrational mode ratios a weak fluorescence Raman spectra heat-treated samples.
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ژورنال
عنوان ژورنال: 2D materials
سال: 2021
ISSN: ['2053-1583']
DOI: https://doi.org/10.1088/2053-1583/ac2f21