摘要:
A composition for photon energy up-conversion comprising at least two components, wherein a first component is capable of absorbing energy at a first wavelength region w≤λ 1 ≤x, which first component acts as a sensitiser in said composition, and wherein a second component is capable of emitting energy at a second wavelength region y≤λ 2 ≤z, which second component acts as an emissive component in said composition, wherein λ 2 ≤λ 1 , and wherein, upon absorption of energy by said first component at said first wavelength region λ 1 , said emissive component emits energy at said second wavelength region λ 2 , characterized in that said first component and/or said second component is an organic compound. The present invention also relates to a system comprising said composition and to uses of said composition and system.