Abstract: A triboelectric energy generator includes a substrate, a first triboelectric member disposed on the substrate in a first partial region of a top face of the substrate, a second triboelectric member disposed on the substrate in a second partial region of the top of the substrate, a third triboelectric member disposed above and spaced from the first triboelectric member and the second triboelectric member. The first triboelectric member, the second triboelectric member, and the third triboelectric member are made of different materials. When an ultrasonic wave is applied to a top face of the third triboelectric member, the third triboelectric member is constructed to alternately contact and non-contact both the first triboelectric member and the second triboelectric member, thereby to generate triboelectricity.

Abstract: Disclosed are a triboelectric energy generator using an ultrasonic waves, and an implantable treatment device for suppressing spread of tumor including the triboelectric energy generator. The generator includes a substrate; a first triboelectric member disposed on the substrate; and a second triboelectric member disposed above and spaced apart from the first triboelectric member, wherein the first triboelectric member and the second triboelectric member are made of different materials, wherein when an ultrasonic wave is applied to a top face of the second triboelectric member, the second triboelectric member is constructed to alternately contact and non-contact the first triboelectric member, thereby to generate triboelectricity.

Abstract: An energy harvesting apparatus including light collecting particles is provided. The energy harvesting apparatus includes a light collecting layer for collecting light incident thereon from the outside, a first charging member on a first surface of the light collecting layer, a second charging member on a surface of the light collecting layer opposite the first surface, and solar cells on opposite light exit surfaces between the first and second surfaces of the light collecting layer.

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: An energy harvesting apparatus including light collecting particles is provided. The energy harvesting apparatus includes a light collecting layer for collecting light incident thereon from the outside, a first charging member on a first surface of the light collecting layer, a second charging member on a surface of the light collecting layer opposite the first surface, and solar cells on opposite light exit surfaces between the first and second surfaces of the light collecting layer.

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: A solar cell module having a light guide member and a method of fabricating the same are provided. The solar cell module includes a light guide member including a light receiving surface for receiving external light and a side surface formed to be inclined to or perpendicular to the light receiving surface, and at least one solar cell mounted on the side surface, the at least one solar cell being configured to receive the external light through the light guide member and perform photoelectric transformation on the received external light. The light guide member includes a plurality of air pores, and the light guide member guides the received external light to a direction of the side surface. The solar cell module may be configured in various manners according to embodiments.

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: 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: 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: There is provided an electrical-energy harvester for a display panel, the harvester comprising: a transparent and flexible lower electrode; a transparent and flexible piezoelectric layer on the lower electrode; reflective particles dispersed in the piezoelectric layer for reflecting light beams incident into the piezoelectric layer; a transparent and flexible upper electrode on the piezoelectric layer, wherein the upper and lower electrodes are opposite to each other; and at least one solar cell disposed on at least one lateral side of the piezoelectric layer, wherein at least one solar cell is configured to receive the light beam reflected from the reflective particles and, thus, to generate electrical energy.

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: 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: There is provided an electrical-energy harvester for a display panel, the harvester comprising: a transparent and flexible lower electrode; a transparent and flexible piezoelectric layer on the lower electrode; reflective particles dispersed in the piezoelectric layer for reflecting light beams incident into the piezoelectric layer; a transparent and flexible upper electrode on the piezoelectric layer, wherein the upper and lower electrodes are opposite to each other; and at least one solar cell disposed on at least one lateral side of the piezoelectric layer, wherein at least one solar cell is configured to receive the light beam reflected from the reflective particles and, thus, to generate electrical energy.

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: 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: An energy generating device includes first material portions comprising a first material, wherein the first material is a piezoelectric material; second material portions comprising a second material, wherein the second material has a larger coefficient of thermal expansion than the first material; lower electrodes; and upper electrodes, wherein second material portions are spaced apart from one another, the first material portions are disposed in a space between the second material portions and in contact with the second material portion, and each of the lower electrodes and upper electrodes are disposed below and above, respectively, each of the first material portions.

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.