The novel transistor and photodetector of monolayer MoS2 based on surface-ionic-gate modulation powered by a triboelectric nanogenerator

A review of molybdenum disulfide (MoS2) based photodetectors: from ultra-broadband, self-powered to flexible devices

“…The MoS 2 photodetector exhibited high current I on /I off ratio of 1.02 Â 10 4 and the rise/fall times of 0.32/ 0.36 s at 405 nm wavelength. Zhao et al 437 developed a surface ionic gate (SIG) transistor using MoS 2 monolayer where gas ions are adsorbed by MoS 2 , which functions as a gate to control the carrier concentration and transport process. The modulation can be adjusted by the TENG operation cycles and the current I on /I off ratio of 10 4 was obtained.…”

Controlling Performance of Organic–Inorganic Hybrid Perovskite Triboelectric Nanogenerators via Chemical Composition Modulation and Electric Field‐Induced Ion Migration

“…[ 8 ] Besides trials of various types of tribo‐materials, substantial works have been carried out to explore feasible strategies to modify the tribo‐materials to improve the energy conversion efficiency, such as the use of micro/nanopatterns [ 9 ] or metal nanoparticles [ 10 ] on the surfaces of tribo‐materials to increase the effective contacting surface area; the nanoparticle embedded composites to adjust the band structure or relative permittivity; [ 11 ] piezo‐ or ferro‐nanoparticles to generate extra charges inside the materials; [ 12 ] and also the use of chemically functionalized materials to modify the surface potentials for enhancing performance of TENGs; [ 9f,13 ] piezoelectric and ferroelectric materials to modify surface charge density [ 12e,14 ] or nanoparticles to enhance the piezo‐ or ferro‐effects of piezoelectric and ferroelectric materials; [ 15 ] 2D materials and polymer composite structures to make stretchable and size adjustable TENGs [ 16 ] and store charges. [ 16a,17 ]…”

Recent Advances in Electrical Doping of 2D Semiconductor Materials: Methods, Analyses, and Applications

“…nanoparticles on MoS2 induced n-doping effects, which significantly enhanced chemica sensing properties with respect to various volatile organic compounds (Figure 8d) [109 Another emerging application based on the doping process in 2D materials is found i nanomechanics [110][111][112][113]. To make high performance nanogenerators with larger outpu power, formation of surface charges or control of work functions of 2D materials is crucia Graphene quantum dots were n-doped with nitrogen, providing high photoluminescenc (PL) quantum efficiency above than 90% [110].…”