Kim, CK Song, ES Kim, HJ Park, C Kim, YC Kim, JK Yu, JW Kim, C 2024-01-21T03:41:30Z 2024-01-21T03:41:30Z 2021-09-02 2006-01-01 0887-624X https://pubs.kist.re.kr/handle/201004/135824 We have synthesized conjugated dendrimer with triazine peripheries, and their luminescence properties were investigated. The dendrimers consist of dendritic triazine wedges for electron transport, distyrylbenzene core as an emitting moiety, and t-butyl peripheral groups for good processing properties. The dendrimers have LUMO values of about -2.7 eV possibly because of the triazine moiety with high electron affinity. Photoluminescence study indicates that energy transfer occurs from the triazine wedges to the stilbene bridge, and finally to the core chromophore units due to a cascade decrease of bandgap from the peripheral wedge to core moiety. Therefore, the emission wavelength was determined by the structure of the core unit. The energy transfer efficiency of distyrylbenzene-cored dendrimers was about 75 and 55% for Trz-1GD-DSB and Trz-2GD-DSB, respectively. A preliminary electroluminescence property also was investigated. (c) 2005 Wiley Periodicals, Inc. English WILEY LIGHT-EMITTING-DIODES CROSS-COUPLING REACTIONS ENERGY-TRANSFER ELECTROLUMINESCENT DEVICES DENDRITIC MACROMOLECULES POLYMERS EFFICIENCY 1,3,5-TRIAZINE GENERATION TRANSPORT Synthesis and luminescence characteristics of conjugated dendrimers with 2,4,6-triaryl-1,3,5-triazine periphery Article 10.1002/pola.21142 1 JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.44, no.1, pp.254 - 263 JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 44 1 254 263 scie scopus 000234091800026 2-s2.0-30344488435 Polymer Science Polymer Science Article LIGHT-EMITTING-DIODES CROSS-COUPLING REACTIONS ENERGY-TRANSFER ELECTROLUMINESCENT DEVICES DENDRITIC MACROMOLECULES POLYMERS EFFICIENCY 1,3,5-TRIAZINE GENERATION TRANSPORT conjuated dendrimer conjugated polymers dendrimers light-emitting diodes (LED) synthesis