6533b862fe1ef96bd12c74f9
RESEARCH PRODUCT
Side-chain conjugated polymers for use in the active layers of hybrid semiconducting polymer/quantum dot light emitting diodes
Ana FokinaWan Ki BaeChanghee LeeYeonkyung LeeJun Hyuk ChangJun Hyuk ChangLydia BraunKookheon CharRudolf Zentelsubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsCarbazolebusiness.industryOrganic ChemistryBioengineeringChain transfer02 engineering and technologyPolymerElectroluminescence010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesBiochemistry0104 chemical scienceschemistry.chemical_compoundchemistryPolymerizationQuantum dotSide chainOptoelectronicsQuantum efficiency0210 nano-technologybusinessdescription
Three monomers, M1–M3, with modified carbazole cores and styrene functionality were prepared for use in the active layers of hybrid polymer/quantum dot light emitting diodes. Utilizing reversible addition fragmentation chain transfer polymerization, side-chain conjugated polymers, P1–P3, with narrow polydispersities and disulfide end groups were obtained. The thermal, optical, and electrochemical properties of the polymers varied depending on the substituents of the carbazole cores. Through the disulfide end groups the polymers were chemically blended with quantum dots to obtain QD/polymer hybrids, which were further used as active layers in light emitting diodes. The fabricated devices retained the superior electroluminescence properties of QDs and showed good device performance with a highest external quantum efficiency of 6.09%. Moreover, a correlation between the HOMO level of the polymer and device performance was identified.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 | Polymer Chemistry |