| 초록 |
We show exciting research opportunities when the concept of molecular self-assembly meets photon upconversion (UC) based on triplet-triplet annihilation (TTA). In dense dye assemblies, triplet excitons can efficiently migrate and annihilate. Highly efficient photon upconversion has been realized in a wide range of chromophore assemblies, such as non-solvent liquids, ionic liquids, amorphous solids, gels, supramolecular assemblies, liquid crystals, and crystals. The control over their assembly structures allows us to achieve unexpected air-stability and efficient upconversion at weak excitation intensity. The introduction of the ‘‘self-assembly’’ concept offers a new perspective in photon upconversion research and triplet exciton science, which show promise for numerous applications ranging from solar energy conversion to chemical biology. |
