Journal
MACROMOLECULES
Volume 39, Issue 9, Pages 3140-3146Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma060032s
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Funding
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0811346] Funding Source: National Science Foundation
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A series of fac-Ir(ppy)(3) complex functionalized poly(styrene)s and poly(N-vinylcarbazole)-copoly(styrene)s were synthesized. The emission wavelength of all polymers could be readily tuned from 550 to 515 nm by reducing the linkage of the Ir complex to the polymer backbones from a Schiff base to an amine. The reduced polymers retained the photophysical properties of the corresponding small molecule fac-Ir(ppy)(3), including transient absorption behaviors, high emission quantum yields (0.12-0.23), and long excited-state lifetimes (9631221 ns). These results clearly indicate that the polymer backbones do not interfere with the photophysical properties of the pendant fac-Ir(ppy)(3) chromophore but endow solution processability to these materials for potential use in light-emitting devices and emissive display technology.
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