Highly Efficient Light-harvesting Dendritic Materials ＆ Their Synthetic Methods

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PURPOSE : A dendrimer type light harvesting antenna compound for optical amplification is provided to maximize the light harvesting effect through efficient energy transfer. Further, solvent and moisture which cause nonradiative transition can be removed from the rare earth complex used thereto. CONSTITUTION : The dendrimer type light harvesting antenna compound with high efficiency comprises the compounds of formula 1, wherein R is selected from the compounds of formula 2; each X1 and X2 is any one selected from CH3, CO2H, CH2Br, NO2, NH2, OCH3 and OH.