研究目的
To provide an update on the current status of germanene, including its synthesis, structural and electronic properties, and potential applications in future electronic devices.
研究成果
Germanene is a promising two-dimensional material with unique electronic properties, but its practical application is hindered by stability issues and the need for synthesis on substrates. Future research should focus on demonstrating its two-dimensional Dirac nature and exploring its potential for quantum spin Hall effect and field-effect devices.
研究不足
Germanene is not stable at ambient conditions and requires synthesis on substrates, which can affect its electronic properties. The interaction with metallic substrates can hybridize germanene's electronic states with those of the substrate.
1：Experimental Design and Method Selection:
The paper reviews various synthesis routes for germanene and discusses its structural and electronic properties through theoretical and experimental approaches.
2：Sample Selection and Data Sources:
Germanene sheets synthesized on different substrates (Pt(111), Au(111), Al(111), molybdenum disulfide) are analyzed.
3：List of Experimental Equipment and Materials:
Scanning tunneling microscopy, low energy electron diffraction, core level spectroscopy, and density functional theory calculations are used.
4：Experimental Procedures and Operational Workflow:
The synthesis involves deposition of germanium on various substrates followed by annealing and characterization.
5：Data Analysis Methods:
The electronic properties are analyzed through scanning tunneling spectroscopy and angle-resolved photoemission spectroscopy.
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