Longi(SH:601012) Ren Min Wang·2025-06-27 05:59Core Insights - The research team from Changchun Institute of Applied Chemistry and Longi Green Energy has made significant breakthroughs in the design of novel organic self-assembled molecules for perovskite solar cells, enhancing their efficiency and stability [1][2][4] Group 1: Research Breakthroughs - A new self-assembled molecular material with dual radical characteristics has been developed, significantly improving the photoelectric conversion efficiency, operational stability, and uniformity of large-area processing in perovskite solar cells [1][2] - The new material achieved a photoelectric conversion efficiency of 26.3% for small-area devices and 23.6% for micro-modules (10 cm²), with a perovskite-silicon tandem cell (1 cm²) exceeding 34.2%, certified by the National Renewable Energy Laboratory (NREL) [3][4] Group 2: Technical Innovations - The introduction of a conjugated design strategy for the receptor has led to the successful development of a core-shell dual radical self-assembled molecule, which exhibits a spin concentration nearly three orders of magnitude higher than traditional self-assembled molecules, enhancing carrier transport capabilities [2][3] - A novel scanning electrochemical cell microscopy-thin layer voltammetry technique was employed to quantify the carrier transport rate and stability of the assembled molecules, revealing that the dual radical molecules have over twice the transport rate of conventional materials [3][4] Group 3: Implications for Industry - This research provides a new molecular design paradigm to address the conductivity, stability, and large-area processing challenges in perovskite solar cells, injecting core driving forces for the industrialization of next-generation efficient and stable photovoltaic components [4]