Surface reconstruction of MoS2 to Mo2S3
| Autor: | Mark Saeys, Christian Joachim, Ravi K. Tiwari, Jianshu Yang |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Surface (mathematics)
Phase transition Chemistry Surfaces and Interfaces Condensed Matter Physics Molecular physics Surfaces Coatings and Films law.invention law Ab initio quantum chemistry methods Thermal Materials Chemistry Surface structure Physical chemistry Scanning tunneling microscope Low voltage Surface reconstruction |
| Zdroj: | Surface Science. 602:2628-2633 |
| ISSN: | 0039-6028 |
| Popis: | The effect of thermal treatments up to 1300 K on the surface structure of MoS 2 was studied using scanning tunneling microscopy. The surface of MoS 2 remained atomically perfect up to 1200 K. Above 1300 K, a reconstruction of the top layers of MoS 2 to Mo 2 S 3 was observed, leading to one-dimensional atomic double rows on the reconstructed surface. First principles based thermodynamic calculations indicate that the thermodynamically preferred surface is the sulfur rich (0 0 1) termination. Low voltage STM simulations using the ESQC method show good agreement with experimental images. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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