Recently, Qcells, a provider of clean energy solutions, has set a new world record for power conversion efficiency of 28.6% with its M10 full-area perovskite-silicon tandem solar cell, which is scalable for mass production. This new breakthrough has been verified by the CalLab of Fraunhofer ISE.
Qcells utilized its proprietary Q.ANTUM technology for the bottom cell and perovskite technology for the top cell in its perovskite-silicon tandem cell. High efficiency was achieved on standard industrial silicon wafers that can be interconnected into industrial modules for full-area M10 cells. It is also straightforward to develop commercial production lines for large-scale production of such perovskite-silicon tandem products.
Qcells’ innovative approach integrates perovskite top and silicon bottom solar cells to create tandem cells, enhancing performance by optimizing the top cell’s capture of high-energy light and facilitating the transmission and capture of low-energy light by the bottom cell.
Furthermore, it increases power per unit area, reducing the number of modules required to achieve the same solar system power output. This breakthrough has the potential to further reduce the cost of solar energy and the land area required for solar projects, making solar energy more affordable, accessible, and sustainable.
