Tunable Properties, Strain Engineering Technologies and Photonic Applications (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Tunable Properties, Strain Engineering Technologies and Photonic Applications

Caption

a, Selective results to show the tunable properties under strain. From left to right are the changed band structure of monolayer TMDC under biaxial strain, redshifted PL and absorption spectra of monolayer TMDC under tensile strain and an illustrative scenario for the "funnel" effect in a wrinkled TMDC, respectively. b, Selective sketch maps for the setup or working principle of the strain engineering technologies. Top-left panel: experimental setup for a bending system to apply uniaxial stain to 2D materials. Top-right panel: a rolling technology to apply strain to graphene. Bottom-left panel: a piezoelectric substrate-based technology to apply biaxial strain to 2D materials. Bottom-right panel: a technology to form a wrinkled TMDC. c, Some selective practical applications. Left panel: schematic of a PDMS fiber incorporating graphene nanocomposites-based strain sensor. Middle panel: the strain-dependent optical loss of the strain sensor described in the left panel to measure the movement of the human body. Right panel: a PL map of a strain-induced single-photon emitter. The insert evidences its single-photon emission behavior.

Credit

by Zhiwei Peng, Xiaolin Chen, Yulong Fan, David J. Srolovitz, Dangyuan Lei

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.