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Chromophore‐labeled dendrimers for use in single‐layer light‐emitting diodes
Author(s) -
Freeman Adam,
Fréchet Jean,
Koene Shan,
Thompson Mark
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200004)154:1<163::aid-masy163>3.0.co;2-3
Subject(s) - chromophore , dendrimer , photoluminescence , electroluminescence , oled , materials science , diode , photochemistry , optoelectronics , core (optical fiber) , energy transfer , layer (electronics) , chemistry , nanotechnology , polymer chemistry , chemical physics , composite material
Two novel chromophore‐labeled dendrimers are presented and their incorporation into two‐component, single layer organic light emitting diodes (OLEDs) is described. The photoluminescence (PL) spectra, both in solution and in the solid state, demonstrate that Forster energy transfer from the donor chromophores on the dendrimers periphery to the acceptors located at the core is highly efficient, and affords emission exclusively from the core dyes, either coumarin 343 or a benzene‐capped pentathiophene. When these dendrimers are doped into single layer OLEDs, the electroluminescence (EL) is nearly identical to the photoluminescence described above, indicating once again exclusive emission from the core chromophores.