Affiliation:
1. Department of Chemistry and Center of Super‐Diamond & Advanced Films (COSDAF) City University of Hong Kong Kowloon 999077 China
2. Department of Applied Physics The Hong Kong Polytechnic University Kowloon Hong Kong 999077 P. R. China
3. The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China
4. Department of Chemistry and State Key Laboratory of Marine Pollution City University of Hong Kong Hong Kong 999077 China
5. City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China
Abstract
Abstract2D materials are intriguing due to their remarkably thin and flat structure. This unique configuration allows the majority of their constituent atoms to be accessible on the surface, facilitating easier electron tunneling while generating weak surface forces. To decipher the subtle signals inherent in these materials, the application of techniques that offer atomic resolution (horizontal) and sub‐Angstrom (z‐height vertical) sensitivity is crucial. Scanning probe microscopy (SPM) emerges as the quintessential tool in this regard, owing to its atomic‐level spatial precision, ability to detect unitary charges, responsiveness to pico‐newton‐scale forces, and capability to discern pico‐ampere currents. Furthermore, the versatility of SPM to operate under varying environmental conditions, such as different temperatures and in the presence of various gases or liquids, opens up the possibility of studying the stability and reactivity of 2D materials in situ. The characteristic flatness, surface accessibility, ultra‐thinness, and weak signal strengths of 2D materials align perfectly with the capabilities of SPM technologies, enabling researchers to uncover the nuanced behaviors and properties of these advanced materials at the nanoscale and even the atomic scale.
Funder
National Natural Science Foundation of China
Environment and Conservation Fund
City University of Hong Kong
Hong Kong Polytechnic University
Cited by
2 articles.
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