Group 1 - Longi Green Energy has made significant progress in the research of new organic self-assembled molecular materials (SAM) and silicon-perovskite tandem devices, achieving an open-circuit voltage close to 2.0V and a certified efficiency of 34.6% for silicon-perovskite tandem solar cells [1] - The research results were published in the international academic journal "Nature" on July 7, 2025, highlighting the importance of the new SAM material development and further efficiency enhancement of silicon-perovskite tandem cells [1] - The company previously collaborated with the Changchun Institute of Applied Chemistry to develop a novel organic self-assembled molecule with excellent charge carrier transport capabilities and structural stability, leading to significant advancements in efficiency and stability for perovskite solar cells [1] Group 2 - Longi's tandem team has published three top academic articles, showcasing the creation of world record efficiencies of 33.9%, 34.2%, and 34.6% through innovative strategies and materials [2] - The collaboration between Longi Green Energy and academic institutions like Suzhou University and the Changchun Institute of Applied Chemistry demonstrates a successful model of industry-academia cooperation aimed at addressing critical issues in tandem solar cell development [2] - The core materials and processes developed include the upper interface double-layer staggered passivation strategy, D-A type high-stability SAM materials, and asymmetric SAM hole transport materials [2]