期刊
NANO LETTERS
卷 15, 期 6, 页码 4013-4018出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b00964
关键词
two-dimensional materials; transition-metal dichalcogenides; PtSe2; epitaxial growth; monolayer; photocatalyst
类别
资金
- National Basic Research Program of China [2013CBA01600, 2011CB932700]
- National Natural Foundation of China [61222112, 61390501, 51325204, 11334006, 61306114]
- Chinese Academy of Sciences [1731300500015, XDB07030100]
- U.S. Department of Energy [DE-FG02-09ER46554]
- National Science Foundation [ACI-1053575]
- U.S. Department of Energy, Office of Science, Basic Energy Science, Materials Sciences and Engineering Division
- JEOL Company, Japan
- JSPS fellowship
- Alexander von Humboldt Foundation
Single-layer transition-metal dichalcogenides (TMDs) receive, significant attention due to their intriguing physical properties for both fundamental research and potential applications in electronics, optoelectronics, spintronics, catalysis, and so on. Here, we demonstrate the epitaxial growth of high-quality single-crystal, monolayer platinum diselenide (PtSe2), a new member of the layered TMDs family, by a single step of direct selenization of a Pt(111) substrate. A combination of atomic-resolution experimental characterizations and first-principle theoretic calculations reveals the atomic structure of the monolayer PtSe2/-Pt(111). Angle-resolved photoemission spectroscopy measurements confirm for the first time the semiconducting electronic Structure of monolayer PtSe2 (in contrast to its semimetallic bulk counterpart). The photocatalytic activity of monolayer PtSe2 film is evaluated by a methylene-blue photodegradation experiment, demonstrating its practical application as a promising photocatalyst. Moreover, circular polarization calculations predict that monolayer PtSe2 has also potential application's in valleytronics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据