2results about How to "Lower open circuit voltage" patented technology

The utility model relates to a solar cell. The above-mentioned solar cell includes the monocrystalline silicon wafer of first doped type and the first intrinsic amorphous silicon layer and the first microcrystalline silicon layer of second doped type of laminated setting on monocrystalline silicon wafer, wherein, the first intrinsic amorphous silicon layer includes first sublayer and second sublayer, and the first sublayer is between the second sublayer and the first microcrystalline silicon layer;Second sublayer contains microcrystal, and the crystallization rate of second sublayer is 1%~5%, and the thickness of second sublayer is 1.3nm~2.5nm, and second sublayer can enhance the contact effect with the first microcrystalline silicon layer, reduce the series resistance of battery, and improve the filling factor and other performance parameters of battery.

This application relates to the photovoltaic field, providing a solar cell and a photovoltaic module. The solar cell includes: a substrate, the surface of which has a first region and a second region arranged at intervals, at least one of the first regions comprising a first part and a second part; a doped layer located within the substrate adjacent to the surface of the first part, the doping concentration of the doped layer being greater than the doping concentration of the substrate; a conductive layer located on the surface of the first region; a passivation layer located on the surfaces of the conductive layer and the second region; and a plurality of electrodes arranged at intervals along a first direction, the electrodes extending along a second direction, each electrode facing the second part, the electrodes being disposed on the side of the conductive layer away from the substrate and electrically connected to the conductive layer. The solar cell and photovoltaic module provided by this application can at least improve the photoelectric conversion efficiency.