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Bandgap Engineering of 2D Materials toward High-Performing Straintronics
Conor S Boland1, Yiwei Sun2, Dimitrios G Papageorgiou2
1School of Mathematical and Physical Sciences, University of Sussex, Brighton, BN1 9QH, U.K.
Nano Letters
|October 2, 2024
Summary
Straintronics uses mechanical strain to tune electronic properties, offering energy-efficient device enhancements. This review explores bandgap engineering in 2D materials for advanced optoelectronics and flexible electronics.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Straintronics offers an energy-efficient approach to electronic control by utilizing mechanical strain.
- Bandgap engineering is crucial for optimizing optoelectronic properties by tuning material bandgaps.
Purpose of the Study:
- To review the fundamental principles of straintronics and the role of bandgap engineering.
- To discuss the suitability of various two-dimensional (2D) materials for strain-engineered applications.
- To highlight recent advancements and future directions in straintronic devices.
Main Methods:
- Review of fundamental principles of straintronics and bandgap engineering.
- Analysis of unique characteristics of 2D materials (graphene, TMDs, h-BN, black phosphorus).
- Examination of experimental and theoretical studies on strain-induced bandgap modulation.
Main Results:
- Mechanical deformation can effectively modulate the bandgap of 2D materials.
- Strain influences bandgap through various mechanisms, impacting device fabrication.
- 2D materials exhibit unique properties suitable for strain-engineered applications.
Conclusions:
- Straintronics, through bandgap engineering in 2D materials, holds significant potential for flexible electronics, sensors, and optoelectronics.
- Further research is needed to address challenges and advance high-performing straintronic devices.
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