MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617083462 A) filed by Hanwha Q Cells Gmbh on July 07, 2026, for Wafer-Based Solar Cell, And Method For Manufacturing A Wafer-Based Solar Cell.
Inventors include Stenzel, Florian; Mette, Ansgar; Hrnlein, Stefan; and Hnig, Ren.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The invention relates to a wafer-based solar cell comprising a semiconductor wafer (1) that is made of semiconductor material and has a semiconductor wafer surface, at least one p-doped region (2), and at least one n-doped region (3), wherein the p-doped region (2) and/or the n-doped region (3) are each electrically contacted, via opening regions (8) and current contact regions (5) located therein, with a metal electrode structure (4) attached to the semiconductor wafer surface, and each metal electrode structure (4) covers an electrode coverage area on the semiconductor wafer surface. According to the invention, the opening regions (8) occupy less than 25%, preferably less than 15%, and particularly preferably less than 10% of the electrode coverage area, and the current contact regions (5) are formed with an area density of 1000 to 50,000, preferably 3000 to 30,000, and particularly preferably 5000 to 15,000 current contact regions (5) per square millimetre of electrode coverage area. The invention also relates to a method for manufacturing such a wafer-based solar cell.
Disclaimer: Curated by HT Syndication.
