LONGi LONGi announces the new world record efficiency of 30.1% for the commercial M6 size wafer-level silicon-perovskite tandem solar cells 07.08.2025 - 18:04:01 LONGi Denmark Finland Germany Netherlands Sweden United Kingdom View original content:https://www.prnewswire.co.uk/news-releases/longi-announces-the-new-world-record-efficiency-of-30-1-for-the-commercial-m6-size-wafer-level-silicon-perovskite-tandem-solar-cells-302178813.html