ORGANIC-INORGANIC PEROVSKITE, FILM, LIGHT-EMITTING FILM, DELAYED FLUORESCENCE-EMITTING FILM, LIGHT-EMITTING ELEMENT, AND METHOD FOR PRODUCING LIGHT-EMITTING ELEMENT

摘要

This organic-inorganic perovskite, which satisfies E_T1E_T and E_S-E_T≤0.1eV, exhibits high light emission efficiency. Therein, E_S represents the excited singlet energy level in the emission of an inorganic component, E_T represents the excited triplet energy level in the emission of the inorganic component, and E_T1 represents the excited triplet energy level in the emission of an organic component.