2D material based field effect transistors and nanoelectromechanical systems for sensing applications

Area of Science:

• Materials Science
• Nanotechnology
• Sensor Technology

Background:

• Sensors are crucial in healthcare, security, and environmental monitoring.
• Microfabricated sensors using very-large-scale-integration (VLSI) offer advantages like small size and low cost.
• Two-dimensional (2D) materials present unique properties for advanced sensor development.

Purpose of the Study:

• To review the application of 2D materials in field-effect transistors (FETs) and nano-electro-mechanical systems (NEMS) for sensing.
• To highlight the advantages of 2D materials in detecting gases, chemicals, and biomolecules.
• To discuss fabrication methods, detection schemes, and performance of these 2D material-based sensors.

Main Methods:

• Review of existing literature on 2D material-based sensors.
• Analysis of field-effect transistors (FETs) and nano-electro-mechanical systems (NEMS) utilizing 2D materials.
• Discussion of fabrication techniques and detection principles.

Main Results:

• 2D materials enable versatile functionalities due to their atomic thinness and van der Waals heterojunction capabilities.
• 2D material-based FETs and NEMS show promise for high-performance detection of various analytes.
• Specific advantages and performance metrics of these sensor technologies are detailed.

Conclusions:

• 2D materials are highly promising for next-generation microfabricated sensors.
• Further research is needed to address current challenges and unlock the full potential of these technologies.
• The review provides insights into the prospects of 2D material-based sensing.