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Updated: Mar 6, 2026
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A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
Published on: August 28, 2018
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Atomic Defects in Two-Dimensional Materials: From Single-Atom Spectroscopy to Functionalities in Opto-/Electronics,
Jinhua Hong1, Chuanhong Jin1, Jun Yuan1,2
1State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|March 16, 2017
Summary
Understanding native defects in two-dimensional materials like graphene and transition-metal dichalcogenides (TMDs) is crucial for advancing optoelectronics and catalysis. This review details defect physics and their impact on electronic properties for targeted applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Two-dimensional (2D) layered materials, including graphene and transition-metal dichalcogenides (TMDs), exhibit unique electronic, valleytronic, and chemical properties.
- These properties drive active exploration in optoelectronics and catalysis.
- Challenges in 2D materials science include defect engineering during large-scale synthesis.
Purpose of the Study:
- To review existing knowledge on native point defects in 2D crystals.
- To elucidate the effect of structural defects on electronic properties for application-specific strategies.
- To provide a clear picture of defect physics in 2D materials.
Main Methods:
- Atomically resolved electron microscopy for probing point defects in graphene and hexagonal boron nitride.
- Single-atom electron energy-loss spectroscopy for measuring local electronic properties.
- Review of studies on point defects in TMDs and their influence on electronic structure, photoluminescence, and transport.
Main Results:
- Native point defects in graphene and hexagonal boron nitride have been characterized using advanced microscopy techniques.
- Local electronic properties of these defects can be precisely measured.
- Point defects in TMDs significantly influence electronic structure, photoluminescence, and electric transport.
Conclusions:
- Understanding defect physics in 2D materials is essential for controlling their properties.
- Defect engineering offers pathways for local modulation of electronic properties.
- Potential benefits for applications in magnetism and catalysis are highlighted.
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