6533b82ffe1ef96bd1294fa3
RESEARCH PRODUCT
Tunable Phosphorescent Emission through Energy Transfer within Multilayer Thin Films Based on a Carbazole-Based Host and Ir(III)-Complex Guest System
Soo-hyoung LeeKyungsun ChoiKookheon CharRudolf ZentelHo-sub KimYi-yeol Lyusubject
Polymers and PlasticsCarbazolebusiness.industryOrganic ChemistryLayer by layerAcceptorEmission intensitychemistry.chemical_compoundchemistryPolymer chemistryMaterials ChemistryOptoelectronicsThin filmPhosphorescenceLuminescencebusinessDeposition (law)description
A new method to tune both phosphorescence emission intensity and spectroscopic colors based on the alternatively structured host/guest multilayer thin films prepared by the spin-assisted LbL deposition is presented. Their emission characteristics are demonstrated with pairs of positively charged Ir-PEI complexes as guests and negatively charged CBZ-PAA as hosts. The phosphorescent emission of Ir-PEI complexes is enhanced by the energy transfer from the host to the guest and, additionally, this energy transfer can be finely tuned by the insertion of spacer layers between the phosphorescent donor and acceptor layers to vary the emission intensity as well as to render different emission colors.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-02 | Macromolecular Rapid Communications |