期刊
APPLIED SURFACE SCIENCE
卷 538, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2020.147936
关键词
PtSe2; Epitaxial films; Laue oscillations; Raman spectroscopy
类别
资金
- EU-H2020 research and innovation programme [654360]
- Research AMP
- Innovation Operational Programme - ERDF [313021 T081]
- Slovak Research and Development Agency [15-0693, APVV-17-0352, APVV-17-0560, APVV-19-0365]
- Slovak Grant Agency for Science, VEGA [2/0149/17]
Few-layer PtSe2 films are promising candidates for high-speed electronics, spintronics, and photodetectors. The study found that growth temperature significantly influences the structural and electrical properties of the films. The best results were achieved for PtSe2 layers grown at 600 degrees Celsius, exhibiting long-range in-plane ordering.
Few-layer PtSe2 films are promising candidates for applications in high-speed electronics, spintronics and photodetectors. Reproducible fabrication of large-area highly crystalline films is, however, still a challenge. Here, we report the fabrication of epitaxially aligned PtSe2 films using one-zone selenization of pre-sputtered platinum layers. We have studied the influence of growth conditions on structural and electrical properties of the films prepared from Pt layers with different initial thickness. The best results were obtained for the PtSe2 layers grown at elevated temperatures (600 degrees C). The films exhibit signatures for a long-range in-plane ordering resembling an epitaxial growth. The charge carrier mobility determined by Hall-effect measurements is up to 24 cm(2)/V.s.
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