摘要 |
To provide a light conversion element which has solved the problems of the reduced intensity of upconverted light, etc., due to the flammability, volatility or high viscosity of a medium used in the conventional photon upconversion elements. A light conversion element is provided which has solved the above problems by using a visually homogeneous and transparent light conversion element, wherein organic photosensitizing molecules and organic light-emitting molecules, which are a combination that exhibits a triplet-triplet annihilation process, are dissolved and/or dispersed in an ionic liquid.
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