PHOTON UP-CONVERSION COMPOSITION, COMPOUND, LIGHT EMISSION BODY, LIGHT EMISSION ELEMENT AND LIGHT EMISSION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a photon up-conversion system that can emit light with a shorter wavelength than that of excitation light, without using a sensitizer.;SOLUTION: A photon up-conversion composition comprises a light emission body composed of a compound having a structure of an aromatic or heterocyclic ring substituted with at least one heavy atom. As the heavy atom, for example, a halogen atom can be used.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT