A newclassof π-stacked polymerspossessinginterestingchargetransportpropertiesisrepresentedby polydibenzofulvenederivatives.Westudytheelectroluminescencepropertiesofthree π-stacked polybenzofulvenederivativesandcomparethemtothoseofthestandard π-stacked poly(N-vinylcarba- zole). Solutionprocessabledevicesusingoneofthesepolymersashostwithbenzothiadiazolebased dyesdisplayperformancesovercomingthoseofthestandardpoly(N-vinylcarbazole)host.Froma photophysicalstudy,thesuperiorperformancesofthepolybenzofulvenecontaininga fluorene unitat the position6oftheindenenucleusareexplainedtoarisefromitsabilitytoself-assemblewiththedyes in supramolecularorganizationsthatreducetheirmicroaggregation.
π-Stacked Polybenzofulvene Derivatives as Hosts for Yellow and Red Emitting OLEDs
Wojciech Mroz;Francesca Villafiorita-Monteleone;Mariacecilia Pasini;Giorgio Grisci;Chiara Botta
2015
Abstract
A newclassof π-stacked polymerspossessinginterestingchargetransportpropertiesisrepresentedby polydibenzofulvenederivatives.Westudytheelectroluminescencepropertiesofthree π-stacked polybenzofulvenederivativesandcomparethemtothoseofthestandard π-stacked poly(N-vinylcarba- zole). Solutionprocessabledevicesusingoneofthesepolymersashostwithbenzothiadiazolebased dyesdisplayperformancesovercomingthoseofthestandardpoly(N-vinylcarbazole)host.Froma photophysicalstudy,thesuperiorperformancesofthepolybenzofulvenecontaininga fluorene unitat the position6oftheindenenucleusareexplainedtoarisefromitsabilitytoself-assemblewiththedyes in supramolecularorganizationsthatreducetheirmicroaggregation.| File | Dimensione | Formato | |
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Descrizione: http://dx.doi.org/10.1016/j.matlet.2014.12.002
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