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Suppression of the Charge Density Wave State in Two-Dimensional 1T-TiSe 2 by Atmospheric Oxidation.
- Source :
-
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2017 Jul 24; Vol. 56 (31), pp. 8981-8985. Date of Electronic Publication: 2017 Jun 27. - Publication Year :
- 2017
-
Abstract
- Two-dimensional (2D) metallic transition-metal dichalcogenides (TMDCs), such as 1T-TiSe <subscript>2</subscript> , have recently emerged as unique platforms for exploring their exciting properties of superconductivity and the charge density wave (CDW). 2D 1T-TiSe <subscript>2</subscript> undergoes rapid oxidation under ambient conditions, significantly affecting its CDW phase-transition behavior. We comprehensively investigate the oxidation process of 2D TiSe <subscript>2</subscript> by tracking the evolution of the chemical composition and atomic structure with various microscopic and spectroscopic techniques and reveal its unique selenium-assisting oxidation mechanism. Our findings facilitate a better understanding of the chemistry of ultrathin TMDCs crystals, introduce an effective method to passivate their surfaces with capping layers, and thus open a way to further explore the functionality of these materials toward devices.<br /> (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Details
- Language :
- English
- ISSN :
- 1521-3773
- Volume :
- 56
- Issue :
- 31
- Database :
- MEDLINE
- Journal :
- Angewandte Chemie (International ed. in English)
- Publication Type :
- Academic Journal
- Accession number :
- 28573663
- Full Text :
- https://doi.org/10.1002/anie.201612605