Abstract: The present invention provides a vertically stacked light-emitting diode (LED) structure, which comprises a substrate, a first light-emitting device, a first reflection layer, a second light-emitting device, a second reflection layer, and a third light-emitting device. The layers are stacked sequentially. The first light-emitting device, the second light-emitting device, and the third light-emitting device are connected electrically to the pads located on the edges of the substrate. In addition, the first reflection layer and the second reflection layer are used to reflect and filter the light from the first light-emitting device, the second light-emitting device, and the third light-emitting device. By using this structure, the area of the light-emitting diode structure can be further shrunk.

Abstract: A photodetection device is configured to detect light and the photodetection device includes a substrate having a largest surface; a dielectric formed over the largest surface of the substrate; a first metallic electrode formed on the dielectric; a second metallic electrode formed on the dielectric, at a given distance from the first metallic electrode, to form a channel; and a single-crystal linear-chain polyfluorinated dibromo-platinum(II) diimine complex located in the channel.

Abstract: A micro light emitting diode (LED) is provided. The micro LED includes a first light emitting unit and a second light emitting unit disposed on a top of the first light emitting unit. A first electrode of the first light emitting unit is inserted through a groove of the second light emitting unit and electrically connected with a substrate. A third light emitting unit is either shielded by the first light emitting unit or arranged at one side of the first light emitting unit. The first light emitting unit, the second light emitting unit, and the third light emitting unit are connected with a common connection point of the substrate by respective common electrodes. Thus an area of a light emitting surface of the micro LED is further reduced.

Abstract: A display panel includes a substrate and a plurality of pixel structures disposed on the substrate. Each of the pixel structures includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. The first light-emitting element is disposed on the substrate and configured to generate a first colored light. A light output surface of the first light-emitting element includes a combined region. The second light-emitting element is disposed on a part of the combined region and configured to generate a second colored light. The third light-emitting element is disposed on the other part of the combined region and configured to generate a third colored light.

Abstract: A micro light-emitting diode (LED) display is provided. The micro LED display includes a panel, at least one first pixel, and a least one second pixel. The panel is provided with a first display area and a second display area. The first pixel is disposed on the first display area and including a first sub-pixel. The first pixel receives a first control signal. The second pixel which includes a plurality of second sub-pixels is arranged at the second display area and receiving a second control signal. Thereby the display with pixel variation is provided for lower power consumption and reduced manufacturing cost.

Abstract: The present invention provides a micro light-emitting diode (LED). A conductive layer is disposed on a substrate. A light-emitting assembly is disposed on the conductive layer. A first light-emitting semiconductor and a second light-emitting semiconductor of the light-emitting assembly are stacked vertically. A first conductive bump and a second conductive bump of a conductive bump set electrical conduct the first light-emitting semiconductor and the second light-emitting semiconductor. Thereby, the volume of the micro LED can be shrunk.

Abstract: The present invention provides a method of inkjet printing, which comprises the following steps: using a first inkjet printhead member of an inkjet device to print the first ink on a carrier and forming a first drop; after a first time, a second inkjet printhead member of the inkjet device printing the second ink on the carrier and forming a second drop, the first drop and the second drop overlapping and forming a mixing region; the second drop in the mixing region supersaturating the first drop and precipitating a nucleus in the mixing region; and the second drop continuing to mix with the first drop and extending the mixing region, and the nucleus continuing to precipitate in the mixing region and forming a crystal.

Abstract: The present invention provides a micro light-emitting diode panel structure, which comprises a substrate with two regions. A first region of the substrate includes a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer stacked sequentially. The substrate, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer are connected electrically via fan-out circuit layers, respectively. When one or more of the light-emitting layers is damaged, one or more first alternate light-emitting layer is disposed in the second region correspondingly for repairing the micro light-emitting diode panel.

Abstract: The present invention provides a micro light-emitting diode structure, which comprises: a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first dielectric layer, a second dielectric layer, and a third dielectric layer stacked on one another sequentially. The first light-emitting layer, the second light-emitting layer, and the third light-emitting layer are connected electrically by fan-out circuit layers, respectively. A first area of the first dielectric layer is greater than a second area of the second dielectric layer. The second area is greater than a third area of the third dielectric layer. A first refractive index of the first dielectric layer is smaller than a second refractive index of the second dielectric layer. The second refractive index is smaller than a third refractive index of the third dielectric layer. By using this structure, the light-emitting angle of a micro LED can be further shrunk.

Abstract: An energy converting device includes a base, which is fixed; a methylammonium lead bromide (MAPbBr3) material having a first end fixedly attached to the base and a second end free to move; and an actuator block attached to the second end of the MAPbBr3 material. The actuator block moves relative to the base when the MAPbBr3 material is exposed to light.

Abstract: A photodetection device is configured to detect light and the photodetection device includes a substrate having a largest surface; a dielectric formed over the largest surface of the substrate; a first metallic electrode formed on the dielectric; a second metallic electrode formed on the dielectric, at a given distance from the first metallic electrode, to form a channel; and a single-crystal linear-chain polyfluorinated dibromo-platinum(II) diimine complex located in the channel.

Abstract: A two-dimensional (2D) hybrid perovskite based opto-electric device includes first and second 2D perovskite layers extending along a given plane; an organic layer sandwiched between the first and second 2D perovskite layers, and extending along the given plane; an external organic layer formed on the first 2D perovskite layer and configured to directly face an ambient of the opto-electric device and to extend along the given plane; and electrical pads directly formed over the external organic layer. A roughness of the external organic layer is smaller than 10 nm.

Abstract: A method for forming a single atom catalyst on a two-dimensional support material involves providing the two-dimensional support material. The two-dimensional support material is combined with at least two heteroatoms and a metal to form a solution. Liquid is removed from the solution to form a material that includes the two-dimensional support material, the at least two heteroatoms, and the metal. The material including the two-dimensional support material, the at least two heteroatoms, and the metal is heated to form the single atom catalyst that includes single atoms of the metal. The at least two heteroatoms bind the single atoms of the metal to, and stabilize the single atoms of the metal on, the two-dimensional support material.

Abstract: A solar cell includes a p-type silicon layer having a first side and a second side and an n-type silicon layer having a first side and a second side. The first side of the n-type silicon layer is arranged on the second side of the p-type silicon layer. The solar cell also includes a first metal electrode arranged on the first side of the p-type silicon layer and a second metal electrode arranged on the second side of the n-type silicon layer. The second metal electrode includes an MXene.

Abstract: Embodiments of the present disclosure describe a photodetector and/or photovoltaic device comprising a semiconducting substrate and a solution including at least GQD and PEDOT:PSS, the solution deposited as a layer on the semiconducting substrate. Embodiments of the present disclosure further describe a method of fabricating a photodetector and/or photovoltaic device comprising contacting an amount of GQD with PEDOT:PSS sufficient to form a solution; and depositing the solution as a layer on a semiconducting substrate.

Abstract: Embodiments of the present disclosure describe a photodetector and/or photovoltaic device comprising a semiconducting substrate and a solution including at least GQD and PEDOT:PSS, the solution deposited as a layer on the semiconducting substrate. Embodiments of the present disclosure further describe a method of fabricating a photodetector and/or photovoltaic device comprising contacting an amount of GQD with PEDOT:PSS sufficient to form a solution; and depositing the solution as a layer on a semiconducting substrate.

Abstract: A self-powered and flexible photodetector system includes a triboelectric nanogenerator, TENG, device configured to generate an electrical current from a mechanical movement; a photodetector, PD, sensor, formed on the TENG device and configured to detect a light; and a voltage regulating circuit electrically connected to the TENG device and the PD sensor and configured to regulate a voltage provided by TENG device to the PD sensor. The PD sensor and the TENG device are flexible.

Abstract: Embodiments of the present disclosure describe a photoelectrochemical (PEC) cell comprising a semiconductor photoelectrode configured with at least two light-harvesting faces; a catalyst layer deposited on at least one light-harvesting face and in contact with an electrolyte; a reference electrode deposited on at least another light-harvesting face; and a counter electrode in contact with the electrolyte.

Abstract: A photoelectrochemical device includes a substrate having a metallic electrocatalyst, a first ohmic contact layer arranged on the substrate, a tandem photoabsorber arranged on the first ohmic contact layer, a second ohmic contact layer arranged on the tandem photoabsorber, and a protective layer arranged on the second ohmic contact layer. The substrate is comprised of a different material than the tandem photoabsorber.

Abstract: A photoelectrochemical (PEC) cell for splitting water into hydrogen and oxygen is described herein. The PEC cell includes a first side configured to capture electromagnetic energy. The PEC cell further includes a second side opposed to the first side comprising an anode electrode and a cathode electrode. The PEC cell further includes a buried p-n junction that converts electromagnetic energy received at the first side into electrical energy. The electrical energy is used to catalyze oxygen and hydrogen at the second side of the PEC cell.