A photodetection element that concentrates irradiated light into a narrow area to suppress loss of light energy and perform efficient photodetection. The photodetection element includes a lens, a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, and a high refractive index layer disposed between the lens and the magnetic element and having a refractive index larger than that of the lens, wherein light that passes through the lens and the high refractive index layer is irradiated onto the magnetic element.

A method of manufacturing high-efficiency solar cells by reducing contact resistance and forming point-contacts is disclosed. The method includes providing a silicon substrate with a metallic electrode on its surface, and applying a high-frequency pulsed voltage comprised of pulse-on time and pulse-off time to the metallic electrode. The method further includes illuminating the silicon substrate using a laser and scanning the substrate under the high-frequency pulsed voltage. During the pulse-on time, the laser photons cause metal in the portion of the metallic electrode affected by the high-frequency pulsed voltage to thermally inter-diffuse with silicon near the surface of the substrate, in-situ forming a plurality of separate contact regions at the interface between the silicon substrate and the metallic electrode. The apparatus includes a carrying device, a conducting module, a pulsed power supply, and a laser to perform various methods described herein.

A method for manufacturing a semiconductor device, a grayscale mask, and a semiconductor device. The method includes providing a substrate and forming an inorganic layer and a photoresist layer thereon. A grayscale mask is arranged, which includes a first mask having two light-transmitting regions and a second mask having two light filtering regions with different light transmittances. Exposure light passes through the grayscale mask to perform a single exposure process with different exposure energies on the photoresist layer. After development, a photoresist pattern having a height difference is formed. Finally, the photoresist pattern is transferred onto the inorganic layer by ion etching so that the inorganic layer is formed into an etched microstructure having a corresponding height difference.

In some aspects, the techniques described herein relate to a method of processing a photovoltaic module structure including multiple layers, the method including: irradiating the photovoltaic module structure with a laser emission to target a specified layer with the laser emission using a specified wavelength of the laser emission; wherein the irradiating includes at least one of: delaminating at least a portion of the specified layer of the photovoltaic module structure from an adjacent layer amongst the multiple layers; or repairing a defect in the specified layer photovoltaic module structure; or both.

Disclosed is a transparent solar cell module with excellent aesthetics and a manufacturing method thereof. The method of manufacturing the transparent solar cell module according to an embodiment of the present disclosure includes: a first stage of forming a thin film solar cell including a thin film solar cell layer patterned on a glass substrate; and a second stage in which an upper glass substrate is disposed on an upper surface of the thin film solar cell, wherein the first stage includes: forming a pattern mask on the other surface of a surface on which the thin film solar cell layer of the glass substrate is formed; and forming the thin film solar cell layer by processing by irradiating a laser on an upper portion where the pattern mask is formed.

The present disclosure relates to the field of solar cells, and provides a solar cell and a method for fabricating the same, which can at least solve the problem of poor performance of segmented cells. The solar cell includes: a first surface, a second surface, and a third surface connecting the first surface and the second surface, where the first surface is a front surface of the solar cell, and the second surface is a rear surface of the solar cell; at least one electrode structure disposed on at least one of the first surface or the second surface; a passivation region, where the passivation region is formed on the third surface; a silicon oxide layer, where the silicon oxide layer is formed on a surface of the passivation region; and a metal oxide layer, where the metal oxide layer is formed on the silicon oxide layer.

Embodiments of the present disclosure relate to a solar cell, a method for preparing the solar cell, and a solar cell production line. The method includes providing a stack including an N-type silicon substrate having a boron-doped polysilicon layer near a first surface, with a tunneling oxide layer, a phosphorus-doped polysilicon layer, and a mask layer sequentially stacked as stated on an opposite second surface; forming through holes in the mask layer to expose the phosphorus-doped polysilicon layer; forming grooves at the through holes that extend through the phosphorus-doped polysilicon layer and the tunneling oxide layer and partially extend into the N-type silicon substrate, thereby separating a surface of the stack provided with the phosphorus-doped polysilicon layer into spaced emitter regions, and removing the mask layer.