Strain engineering usually refers to a kind of
material processing technology which aims to regulate the
properties of materials or optimize related devices’ performance by
inherent or external strain. In recent years, with the development
of 2-D materials, the research surrounding strain engineering of
2-D materials (transition metal dichalcogenides [TMDCs], graphene,
etc.) has attracted significant attention. Compared with strain
engineering of traditional bulk materials, the atomic thickness of
2-D materials makes them more suitable to serve as the platform for
strain-engineering research and builds a bridge between strain
engineering and nanophotonics. Hence, they are worthy of attention
from many points of view, from fundamental physics to practical
applications.
