JinkoSolar has been granted a patent for a photovoltaic cell with a unique passivation layer design. The method involves forming interleaved first and second portions doped with the same elements, with the doping concentration gradually decreasing towards the substrate. This innovation aims to enhance the efficiency of solar cells. GlobalData’s report on JinkoSolar gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on JinkoSolar, Artificial photosynthesis was a key innovation area identified from patents. JinkoSolar's grant share as of March 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Photovoltaic cell with passivation layer having interleaved doped portions
A recently granted patent (Publication Number: US11967656B2) discloses a method for preparing a photovoltaic cell that involves providing a substrate, forming an initial passivation layer on the substrate's first surface, and conducting doping treatments to create a passivation layer with interleaved first and second portions. The second portions have a decreasing doping concentration towards the adjacent first portions and the substrate, ensuring optimal performance of the photovoltaic cell. The method also includes additional steps such as forming a tunneling layer between the substrate and the initial passivation layer, and creating electrodes over the reference surfaces of the second portions.
Furthermore, the patent details various aspects of the method, including the specific doping treatments, the thickness of the passivation layer, the grain size differences between the first and second portions, the number of grain boundaries, and the dislocation density. The method aims to enhance the efficiency and performance of the photovoltaic cell by carefully controlling the doping elements and structural characteristics of the passivation layer. By optimizing these parameters, the patent provides a novel approach to manufacturing photovoltaic cells that can potentially improve their overall functionality and effectiveness in converting solar energy into electricity.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
