Interaction of VSe2 with Ambient Gases: Stability and Chemical Reactivity

Raju Edla, Chia Nung Kuo, Piero Torelli, Chin Shan Lue, Danil W. Boukhvalov, Antonio Politano

研究成果: Article

2 引文 斯高帕斯(Scopus)


Combining first-principles calculations with synchrotron-based X-ray photoelectron spectroscopy, the surface chemical reactivity of VSe2 single crystals toward oxygen, water, and air is assessed. It is found that the pristine, undefected surface is inert toward oxygen and water adsorption. The presence of Se defects drastically changes the surface reactivity. Specifically, water adsorption at room temperature is dissociative and mainly localized at Se vacancies. In contrast, surface oxidation is achieved only after long-term air exposure (1 month). These results are crucial to assess the surface stability in ambient environment in the prospect of VSe2-based applications.

期刊Physica Status Solidi - Rapid Research Letters
出版狀態Published - 2020 二月 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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