Developed a new method to achieve built-in and tunable strain in two-dimensional materials directly via growth.
Significance and Impact
The ability to realize built-in strain for 2D materials allows for controlled modification of band structure that can lead to more efficient devices and further exploration of the underlying physics.
- Obtained both tensile and compressive strain engineering.
- Achieved direct bandgap bilayer WSe2 on a rigid substrate via tensile strain.
- Observed brightening of the dark exciton in tensile strained monolayer WSe2.