The technique relates to a method for preparing a nanomesh metal membrane 5 transferable on a very wide variety of supports of different types and shapes comprising at least one step of de-alloying 1 a thin layer 6 of a metal alloy deposited on a substrate 7, said method being characterized in that said thin layer 6 has a thickness less than 100 nm, and in that said de-alloying step 1 is carried out by exposing said thin layer 6 to an acid vapor in the gas phase 8, in order to form said nanomesh metal membrane 5.

Wafer alignment with restricted visual access has been disclosed. In an example, a method of processing a substrate for fabricating a solar cell involves supporting the substrate over a stage. The method involves forming a substantially opaque layer over the substrate. The substantially opaque layer at least partially covers edges of the substrate. The method involves performing fit-up of the substantially opaque layer to the substrate. The method involves illuminating the covered edges of the substrate with light transmitted through the stage, and capturing a first image of the covered edges of the substrate based on the light transmitted through the stage. The method further includes determining a first position of the substrate relative to the stage based on the first image of the covered edges. The substrate may be further processed based on the determined first position of the substrate under the substantially opaque layer.

To provide a semiconductor device, a semiconductor laser, and a method of producing a semiconductor device that are capable of sufficiently ensuring electrical connection between a transparent conductive layer and a semiconductor layer. [Solving Means] A semiconductor device according to the present technology includes: a first semiconductor layer; a second semiconductor layer; an active layer; and a transparent conductive layer. The first semiconductor layer has a first conductivity type, a stripe-shaped ridge being formed on a surface of the first semiconductor layer. A second width is not less than 0.99 and not more than 1.0 times a first width, a third width is not less than 0.96 and not more than 1.0 times the second width, and the transparent conductive layer has a uniform thickness within a range of not less than 90% and not more than 110% in a range of the third width, the first width being a width in a direction perpendicular to an extending direction of the ridge on a surface of the ridge on which the transparent conductive layer is formed, the second width being a width in the direction on a surface of the transparent conductive layer on a side of the ridge, the third width being a width in the direction on a surface opposite to the ridge of the transparent conductive layer.

A solar cell can include a photoelectric conversion unit including a semiconductor substrate, a tunneling layer disposed on the semiconductor substrate, a first conductive type region and a second conductive type region disposed on the tunneling layer at a same side of the semiconductor substrate, and a barrier region disposed between the first and second conductive type regions; and an electrode disposed on the photoelectric conversion unit and including an adhesive layer disposed on the first and second conductive type regions, and an electrode layer disposed on the adhesive layer, in which the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.

The present disclosure relates to OLED and PV devices including transparent electrodes that are formed of conductive nanostructures and methods of improving light out-coupling in OLED and input-coupling in PV devices.

Processes for producing and treating thin-films comprising nanomaterials are provided. A process of producing a transparent conducting film includes printing nanomaterials on a substrate, and directing a laser beam onto the nanomaterials to weld junctions between the nanomaterials. A process for tightly integrating nanomaterials with 2D material includes locating the 2D material over the nanomaterials, and directing a laser beam towards the 2D material to produce laser shock pressure sufficient to wrap the 2D material on the nanomaterials. A process of reducing the resistivity of a transparent conducting film includes directing a first laser beam towards a transparent conducting film having nanomaterials thereon such that the nanomaterials experience laser shock pressure sufficient to compress the nanomaterials, and then directing a second laser beam towards the transparent conducting film such that junctions between the nanomaterials are fused.

Hybrid transparent conducting materials are disclosed with combine a polycrystalline film and conductive nanostructures, in which the polycrystalline film is percolation doped with the conductive nanostructures. The polycrystalline film preferably is a single atomic layer thickness of polycrystalline graphene, and conductive nanostructures preferably are silver nanowires.

Provided are a solar cell and a method of manufacturing the same. The solar cell includes a substrate, a first electrode on the substrate, a second electrode on the first electrode, and at least one semiconductor layer interposed between the first and second electrodes, and a first connection layer interposed between the first electrode and the semiconductor layer and electrically connecting the first and second electrodes to each other. The first connection layer includes a plurality of two-dimensional layers vertically extending from a top surface of the first electrode to a bottom surface of the semiconductor layer. The two-dimensional layers include a metal compound.

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.

Wafer alignment with restricted visual access has been disclosed. In an example, a method of processing a substrate for fabricating a solar cell involves supporting the substrate over a stage. The method involves forming a substantially opaque layer over the substrate. The substantially opaque layer at least partially covers edges of the substrate. The method involves performing fit-up of the substantially opaque layer to the substrate. The method involves illuminating the covered edges of the substrate with light transmitted through the stage, and capturing a first image of the covered edges of the substrate based on the light transmitted through the stage. The method further includes determining a first position of the substrate relative to the stage based on the first image of the covered edges. The substrate may be further processed based on the determined first position of the substrate under the substantially opaque layer.