科学家在有机材料内观测到量子效应

Core Insights - Scientists at the University of Cambridge's Cavendish Laboratory have observed a quantum effect in organic materials, previously thought to exist only in inorganic metal oxides, which allows for highly efficient conversion of light energy into electrical energy [1][2] - The research focuses on a spin-free radical organic semiconductor called P3TTM, which contains unpaired "single" electrons that exhibit unique magnetic and electronic behaviors [1] - The study reveals that when these molecules are densely packed, the "single" electrons display "Mott-Hubbard insulator" behavior, leading to alternating arrangements of electrons [1] Group 1 - The "single" electrons absorb light energy and transition to neighboring molecules, creating a chain reaction that separates positive and negative charges, resulting in a continuous electric current [2] - A solar cell was constructed using P3TTM films, achieving nearly perfect charge collection efficiency, with almost every incident photon converted into usable current [2] - Unlike traditional organic solar cells that require two materials for electron transfer, the new material can complete the entire conversion process using a single substance, potentially leading to lower-cost and lightweight solar cells [2]