Abstract: There is provided a tactile feedback device comprising: an array of surface charge generation units; and an array of pressure-generation units, wherein the array of the pressure-generation units is spaced apart from the array of the surface charge generation units, wherein the array of the pressure-generation units is movable relative to the array of the surface charge generation units, wherein an attractive or repulsive force is generated between a corresponding surface charge generation unit of the array of surface charge generation units and a corresponding pressure-generation unit of the array of the pressure-generation units, based on a polarity of surface charges induced in the corresponding surface charge generation unit.

Abstract: The present disclosure enables materials of a triboelectric charging member to exhibit a characteristic of increased surface charge density, thereby improving output of a triboelectric generating device. Accordingly, the present disclosure provides a triboelectric generating device showing improved output without increasing a size of the triboelectric generating device or without increasing amounts of materials required for the triboelectric generating device.

Abstract: There is provided an electric energy generator system comprising: an ultrasonic-wave emission device configured to generate an ultrasonic-wave and emit the ultrasonic-wave; and an electric energy generator device configured to generate an electric energy upon a receipt of the emitted ultrasonic-wave.

Abstract: There is provided a three-dimensional triboelectric energy generator comprising: a moving object; at least two triboelectric energy generator modules defining at least two planes respectively, wherein the moving object is disposed between the least two planes; and at least two elastic members configured to couple the moving object to the at least two triboelectric energy generator modules respectively, wherein a movement of the moving object allows each of the at least two triboelectric energy generator modules to generate a triboelectric energy.

Abstract: Provided are a triboelectric energy generator using a control of a dipole polarization direction and a method of fabricating the same. The present invention controls a direction of a charging property generated by friction through a control of a dipole polarization using a ferroelectric or piezoelectric property of a material, and by using this control, the present invention is related to a triboelectric energy generator in a disk type in which a frictional charging material is slidable on a thin film only using control of a dipole polarization without need of an additional patterning process and output power is improved.

Abstract: The present disclosure provides a graphene-based touch sensor device using triboelectric effect, the device comprising: a substrate; a first electrode layer disposed on the substrate; a graphene channel layer disposed on the substrate, wherein the graphene channel layer is flush with the first electrode layer, and is spaced from the first electrode layer; a gate dielectric layer in partial contact with the electrode layer and the graphene channel layer respectively; source and drain electrodes formed on both opposing ends of the graphene channel layer respectively; and a triboelectric layer formed on the first electrode layer, wherein the triboelectric layer generates a triboelectric potential via contact of an external friction material therewith, wherein the contact of the external friction material is detected based on a current change in the graphene channel layer due to the triboelectric potential applied thereto.

Abstract: There is provided a tactile feedback device comprising: an array of surface charge generation units; and an array of pressure-generation units, wherein the array of the pressure-generation units is spaced apart from the array of the surface charge generation units, wherein the array of the pressure-generation units is movable relative to the array of the surface charge generation units, wherein an attractive or repulsive force is generated between a corresponding surface charge generation unit of the array of surface charge generation units and a corresponding pressure-generation unit of the array of the pressure-generation units, based on a polarity of surface charges induced in the corresponding surface charge generation unit.

Abstract: The present disclosure enables materials of a triboelectric charging member to exhibit a characteristic of increased surface charge density, thereby improving output of a triboelectric generating device. Accordingly, the present disclosure provides a triboelectric generating device showing improved output without increasing a size of the triboelectric generating device or without increasing amounts of materials required for the triboelectric generating device.

Abstract: The present disclosure provides a graphene-based touch sensor device using triboelectric effect, the device comprising: a substrate; a first electrode layer disposed on the substrate; a graphene channel layer disposed on the substrate, wherein the graphene channel layer is flush with the first electrode layer, and is spaced from the first electrode layer; a gate dielectric layer in partial contact with the electrode layer and the graphene channel layer respectively; source and drain electrodes formed on both opposing ends of the graphene channel layer respectively; and a triboelectric layer formed on the first electrode layer, wherein the triboelectric layer generates a triboelectric potential via contact of an external friction material therewith, wherein the contact of the external friction material is detected based on a current change in the graphene channel layer due to the triboelectric potential applied thereto.

Abstract: There is provided an electric energy generator system comprising: an ultrasonic-wave emission device configured to generate an ultrasonic-wave and emit the ultrasonic-wave; and an electric energy generator device configured to generate an electric energy upon a receipt of the emitted ultrasonic-wave.

Abstract: There is provided a three-dimensional triboelectric energy generator comprising: a moving object; at least two triboelectric energy generator modules defining at least two planes respectively, wherein the moving object is disposed between the least two planes; and at least two elastic members configured to couple the moving object to the at least two triboelectric energy generator modules respectively, wherein a movement of the moving object allows each of the at least two triboelectric energy generator modules to generate a triboelectric energy.

Abstract: A triboelectric energy harvester comprises an electrode, a non-conductor, a first conductor, and a second conductor. The non-conductor is disposed on the electrode. The first conductor is disposed on the non-conductor. The second conductor frictionally contacts the first conductor. The frictional contact between the first and second conductors creates triboelectric energy.

Abstract: A nanogenerator and a method of manufacturing the same are provided. The nanogenerator includes a boron nitride atomic layer, and a first electrode and a second electrode disposed on the boron nitride atomic layer.

Abstract: Provided are a triboelectric energy generator using a control of a dipole polarization direction and a method of fabricating the same. The present invention controls a direction of a charging property generated by friction through a control of a dipole polarization using a ferroelectric or piezoelectric property of a material, and by using this control, the present invention is related to a triboelectric energy generator in a disk type in which a frictional charging material is slidable on a thin film only using control of a dipole polarization without need of an additional patterning process and output power is improved.

Abstract: Disclosed is a fibrous triboelectric generator. The fibrous triboelectric includes a first textile; a first electrode layer that is formed on a surface of the first textile; a friction layer that is formed on a surface of the first electrode layer and is able to be electrically charged by friction; and a second electrode layer that is able to undergo friction with the friction layer.

Abstract: The present invention relates to a two-dimensional zinc-oxide nanosheet-based piezoelectric power generation device. More specifically, the present invention relates to a piezoelectric power generation device using a two-dimensional zinc-oxide nanosheet to provide high mechanical reliability and high output power.

Abstract: A nanogenerator and a method of manufacturing the same are provided. The nanogenerator includes a boron nitride atomic layer, and a first electrode and a second electrode disposed on the boron nitride atomic layer.