Robustness of transport properties to bending angles from edge-state contributions in flexible MoS₂ nanoribbon

Abstract

Monolayer molybdenum disulfide (MoS2) is considered a promising candidate for high-performance flexible nanoelectronics in the future. The robustness of conductivity against bending is critical for the stability of flexible electronic devices. We proposed an all-MoS2 nanoribbon-based junction consisting of a 2H semiconducting phase MoS2 nanoribbon sandwiched between two 1 T metallic phase MoS2 electrodes. The junction exhibits better conducting behavior due to the contribution of the nanoribbon’s edge states and is insensitive to the bending angle of the semiconducting region when the bending angle is close up to 30°. These results suggest that this system is very promising for flexible nanoelectronics.

Bending Direction-Related Anisotropic Transport Characteristics of Two-Dimensional Janus MoSSe Devices

“…Among them, monolayer molybdenum disulfide (MoS 2 ) is considered to be a promising candidate material for high-performance and future flexible nanoelectronics. 26 Most sensors are excellent at responding to pressure; they can feel and measure the pressure's quantity correctly and can even tell the difference between bending force, torsion force, and acoustic vibration. Unfortunately, they are not very good at determining the pressure's direction.…”

“…This resistance value can change because of modifications made to the sensor’s structure, contact resistance between the electrodes, or nanomaterial-based conductive paths. − Combined with evolving integration processes, 2D materials will bring unlimited possibilities for multifunctional smart device applications, such as graphene, − black phosphorus, − topological insulators, MXene materials, − transition metal dichalcogenides (TMDs), − etc., with unique and excellent electrical, optical, magnetic, and mechanical properties that show superior performance in pressure sensor applications. Among them, monolayer molybdenum disulfide (MoS 2 ) is considered to be a promising candidate material for high-performance and future flexible nanoelectronics . Most sensors are excellent at responding to pressure; they can feel and measure the pressure’s quantity correctly and can even tell the difference between bending force, torsion force, and acoustic vibration.…”