Triboelectric nanogenerators enhanced by a metal–organic framework for sustainable power generation and air mouse technology

Abstract

In this study we have synthesized a Cd-MOF and explored for TENG performance. MOF-TENG device utilzed for various low powered electronics. Furthermore, device was attached to the finger of a glove to control the mouse movement. This device setup was used for biomechanical energy harvesting.

Self-powered triboelectric nanogenerator with enhanced surface charge density for dynamic multidirectional pressure sensing

“…This improvement is attributed to the additional charge trapping sites provided by CB particles within the PDMS matrix, which store the charges induced via the triboelectric effect, thus increasing the surface charge density and enhancing the STEPs' output. 1,51–54 Moreover, doping of CB into PDMS raises the dielectric constant of the composite, allowing for greater charge storage and optimizing the energy conversion efficiency. The V oc output peaks at a CB content of 2 wt% across the applied pressure range.…”

“…PVP doping has been reported to increase the discharged energy density of a material, which in turn increases the dielectric constant of the material, and the dielectric properties of triboelectric materials increase the surface charge density ( σ ) as the surface charge is proportional to the relative permittivity of the triboelectric material. 49,50,52,54,56 PVP doping also leads to an increasing charge-trapping ability that increases the density of electrostatic charges ( σ ) generated on the surface of PDMS too, which thereby, will result in an elevated V oc between the electrodes of the STEPs. 49,50,52,54,56 Considering these two benefits, PVP doping into PDMS was conducted, and STEPs with PVP contents of 0, 2, 4, 6, 8 wt% were synthesized and tested.…”

“…49,50,52,54,56 PVP doping also leads to an increasing charge-trapping ability that increases the density of electrostatic charges ( σ ) generated on the surface of PDMS too, which thereby, will result in an elevated V oc between the electrodes of the STEPs. 49,50,52,54,56 Considering these two benefits, PVP doping into PDMS was conducted, and STEPs with PVP contents of 0, 2, 4, 6, 8 wt% were synthesized and tested. Similar to CB, the V oc increased with the pressure applied.…”

Fabrication of a Terbium-Functionalized Cadmium Organic Framework with Proper Energy Levels as a Ratiometric Probe of an Anthrax Biomarker

“…Metal–organic frameworks (MOFs) are a class of crystalline material assembled from metal ions and organic ligands, characterized by a porous crystal structure, a large surface area, and high adjustability, − showing great potential applications in the fields of gas adsorption, fluorescence sensors, supercapacitors, and catalysis. − Luminescent MOFs, involving d- (mainly Zn 2+ , Cd 2+ ) and f-containing (mainly Eu 3+ and Tb 3+ ) MOF materials, have been applied in the fluorescent sensing of metal ions, food safety, explosives, and so on. − Recently, MOF materials have been successfully used for the fluorescence sensing of DPA . It is worth mentioning that Tb­(III)-based luminescent MOFs are particularly feasible for the detection of bacterial spores because of the strong interaction and the suitable energy levels of DPA and Tb­(III) ions. − For instance, a Tb-MOF based on a steric carboxylate ligand can effectively sensitize DPA based on luminescence recovery mode with the LOD down to 7.8 μM and exhibits obvious luminescence color change from blue to blue-green .…”

Synergy Unleashed: Piezo–Tribo Hybrid Harvester for Sustainable Power Generation Toward Augmented and Virtual Reality Applications

“…Adding filler materials into the triboactive layers is an effective process for output performance improvement. Metal oxides, [ 14 ] metal organic frameworks, [ 15 ] graphene, [ 16 ] graphene oxide, [ 17 ] and 2D materials [ 18 ] were used as the fillers. Even though these fillers help to improve the performance, the sensing ability (mechanical to electric signal conversion) can be improved by the mechanical sensitive fillers.…”