A photovoltaic cell is provided, including: a substrate; a tunneling layer, a field passivation layer and a first passivation film that are sequentially disposed on a rear surface of the substrate; and a first electrode. The first electrode penetrates the first passivation film and is in contact with the field passivation layer. A doping concentration of the first doping element in the tunneling layer is less than a doping concentration of the first doping element in the field passivation layer, and the doping concentration of the first doping element in the tunneling layer is greater than a doping concentration of the first doping element in the substrate. The field passivation layer includes a first doped region and a second doped region, and a doping curve slope of the first doped region is greater than a doping curve slope of the second doped region.

A photovoltaic cell is provided, including: a substrate; a tunneling layer, a field passivation layer and a first passivation film that are sequentially disposed on a rear surface of the substrate; and a first electrode. The first electrode penetrates the first passivation film and is in contact with the field passivation layer. A doping concentration of the first doping element in the tunneling layer is less than a doping concentration of the first doping element in the field passivation layer, and the doping concentration of the first doping element in the tunneling layer is greater than a doping concentration of the first doping element in the substrate. The field passivation layer includes a first doped region and a second doped region, and a doping curve slope of the first doped region is greater than a doping curve slope of the second doped region.

A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

The present application relates to an organic solar cell including: a first electrode; a second electrode which is disposed to face the first electrode; and an organic material layer having one or more layers which includes a photoactive layer disposed between the first electrode and the second electrode, in which one or more layers of the organic material layer include two or more regions having different thicknesses.

The present application relates to an organic solar cell including: a first electrode; a second electrode which is disposed to face the first electrode; and an organic material layer having one or more layers which includes a photoactive layer disposed between the first electrode and the second electrode, in which one or more layers of the organic material layer include two or more regions having different thicknesses.

A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

The present disclosure describes aspects of a dual-use semiconductor device for solar power and data storage. In some aspects, a dual-use semiconductor device is selectively configured to generate power by coupling regions having a same type of doping to form a PN junction by which power is generated in response to light. The generated power may be provided to a load coupled to contacts (e.g., front and backside contacts) of the dual-use semiconductor device. The dual-use semiconductor device is also selectively configurable for data storage by decoupling the regions of the same type of doping to provide respective data storage access terminals for accessing (e.g., writing or reading) a bit value that is stored as a level of charge by a floating-gate structure of the dual-use semiconductor device. By so doing, solar power arrays implemented with dual-use semiconductor devices may also provide data storage functionality.

Disclosed is a solar cell panel including: a semiconductor substrate having a long axis and a short axis that intersect; a first conductivity type region formed on one surface of the semiconductor substrate; a second conductivity type region formed on the other surface of the semiconductor substrate; a first electrode electrically connected to the first conductivity type region; and a second electrode electrically connected to the second conductivity type region. The first electrode includes: a plurality of finger lines positioned in a first direction parallel to the long axis and being parallel to each other; and a plurality of bus bars including a plurality of pad portions positioned in a second direction parallel to the short axis. The plurality of pad portions include a first outer pad and a second outer pad located on opposite ends of the plurality of bus bars in the second direction, respectively.