Structure-Property-Application Correlations of Early Transition Metal Chalcogenides: A Dichalcogenide-Centered...

Area of Science:

• Materials Science
• Solid State Chemistry
• Condensed Matter Physics

Background:

• Early transition metal (ETM)-based chalcogenides are a versatile class of layered materials.
• Research has primarily focused on transition metal dichalcogenides, overlooking other related compounds.
• Understanding the broader family of ETM chalcogenides is crucial for unlocking new functionalities.

Purpose of the Study:

• To provide a dichalcogenide-centered perspective on ETM chalcogenides.
• To link crystal chemistry and structural polymorphism to functional performance.
• To highlight potential applications in 2D materials, memory devices, and energy technologies.

Main Methods:

• Review of existing literature on ETM chalcogenides.
• Analysis of crystal structures and coordination geometries.
• Discussion of property modification strategies like doping, intercalation, and strain engineering.

Main Results:

• Detailed examination of various ETM chalcogenides (disulfides, sesquichalcogenides, etc.).
• Explanation of how phase transitions, defects, doping, intercalation, and strain influence material properties.
• Identification of key structural features correlating with enhanced functionality.

Conclusions:

• ETM chalcogenides possess rich chemistry and tunability, making them promising for future technologies.
• Engineering these materials can lead to improved performance in electronic, catalytic, and energy applications.
• Addressing challenges in scalability, phase control, and interfacial engineering is vital for development.