LONGi LONGi sets a new world record of 33.9% for the efficiency of crystalline silicon-perovskite tandem solar cells 07.08.2025 - 18:07:13 LONGi Green Energy Technology Co., Ltd. Denmark Finland Germany Netherlands Sweden United Kingdom China View original content:https://www.prnewswire.co.uk/news-releases/longi-sets-a-new-world-record-of-33-9-for-the-efficiency-of-crystalline-silicon-perovskite-tandem-solar-cells-301978011.html