FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1987679241> ?p ?o ?g. }

• W1987679241 abstract "Optoelectronic devices made from semiconductor polymers often employ partially phase-separated binary polymer blends with “distributed heterojunctions” in the polymer film, and the migration of bulk excitons towards these heterojunctions crucially influences the device performance. Here, we investigate exciton migration in blend films of two polyfluorene derivatives. Localized exciplex states form in electron-hole capture at the heterojunction between the two polymers and these can be thermally excited to transfer to bulk excitons. Rapid radiative emission from these excitons can then allow efficient light-emitting diode operation. We show here that when these excitons migrate to another heterojunction site within their lifetime they are re-trapped at the interface and again form exciplex states or dissociate completely. We demonstrate that in polymer blend light-emitting diodes this can reduce the exciton population by more than 54% and can strongly influence the emission spectrum. We then analyze exciton re-trapping in detail using time-resolved photoluminescence spectroscopy on blends with different morphologies and find that for nanometer-scale phases exciton emission is completely suppressed. We show that the data agree well with a simple kinetic model which confirms the importance of the blend morphology for the exciton trapping efficiency." @default.
• W1987679241 created "2016-06-24" @default.
• W1987679241 creator A5010048002 @default.
• W1987679241 creator A5060458159 @default.
• W1987679241 creator A5062616278 @default.
• W1987679241 date "2005-06-22" @default.
• W1987679241 modified "2023-10-17" @default.
• W1987679241 title "Exciton trapping at heterojunctions in polymer blends" @default.
• W1987679241 cites W1898001095 @default.
• W1987679241 cites W1964201673 @default.
• W1987679241 cites W1964676678 @default.
• W1987679241 cites W1969723408 @default.
• W1987679241 cites W1971889587 @default.
• W1987679241 cites W1973471799 @default.
• W1987679241 cites W1975023812 @default.
• W1987679241 cites W1983887773 @default.
• W1987679241 cites W1993759905 @default.
• W1987679241 cites W1996575788 @default.
• W1987679241 cites W1996861732 @default.
• W1987679241 cites W1997447277 @default.
• W1987679241 cites W2002689163 @default.
• W1987679241 cites W2013194631 @default.
• W1987679241 cites W2013514565 @default.
• W1987679241 cites W2015240500 @default.
• W1987679241 cites W2015257245 @default.
• W1987679241 cites W2017084915 @default.
• W1987679241 cites W2017688284 @default.
• W1987679241 cites W2023341478 @default.
• W1987679241 cites W2025120535 @default.
• W1987679241 cites W2032395837 @default.
• W1987679241 cites W2035816559 @default.
• W1987679241 cites W2052370877 @default.
• W1987679241 cites W2056576103 @default.
• W1987679241 cites W2057279555 @default.
• W1987679241 cites W2058311671 @default.
• W1987679241 cites W2064325362 @default.
• W1987679241 cites W2065836368 @default.
• W1987679241 cites W2069619322 @default.
• W1987679241 cites W2071134066 @default.
• W1987679241 cites W2071500476 @default.
• W1987679241 cites W2073636795 @default.
• W1987679241 cites W2082245656 @default.
• W1987679241 cites W2086297882 @default.
• W1987679241 cites W2093069356 @default.
• W1987679241 cites W2095068769 @default.
• W1987679241 cites W2133954344 @default.
• W1987679241 cites W2148176976 @default.
• W1987679241 doi "https://doi.org/10.1063/1.1924504" @default.
• W1987679241 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/16035815" @default.
• W1987679241 hasPublicationYear "2005" @default.
• W1987679241 type Work @default.
• W1987679241 sameAs 1987679241 @default.
• W1987679241 citedByCount "60" @default.
• W1987679241 countsByYear W19876792412012 @default.
• W1987679241 countsByYear W19876792412013 @default.
• W1987679241 countsByYear W19876792412014 @default.
• W1987679241 countsByYear W19876792412015 @default.
• W1987679241 countsByYear W19876792412016 @default.
• W1987679241 countsByYear W19876792412017 @default.
• W1987679241 countsByYear W19876792412019 @default.
• W1987679241 countsByYear W19876792412020 @default.
• W1987679241 countsByYear W19876792412023 @default.
• W1987679241 crossrefType "journal-article" @default.
• W1987679241 hasAuthorship W1987679241A5010048002 @default.
• W1987679241 hasAuthorship W1987679241A5060458159 @default.
• W1987679241 hasAuthorship W1987679241A5062616278 @default.
• W1987679241 hasConcept C112613896 @default.
• W1987679241 hasConcept C120665830 @default.
• W1987679241 hasConcept C121332964 @default.
• W1987679241 hasConcept C159467904 @default.
• W1987679241 hasConcept C159985019 @default.
• W1987679241 hasConcept C165330911 @default.
• W1987679241 hasConcept C17729963 @default.
• W1987679241 hasConcept C181500209 @default.
• W1987679241 hasConcept C184779094 @default.
• W1987679241 hasConcept C185592680 @default.
• W1987679241 hasConcept C18903297 @default.
• W1987679241 hasConcept C192562407 @default.
• W1987679241 hasConcept C206991015 @default.
• W1987679241 hasConcept C26873012 @default.
• W1987679241 hasConcept C2777903423 @default.
• W1987679241 hasConcept C2777924906 @default.
• W1987679241 hasConcept C49040817 @default.
• W1987679241 hasConcept C521977710 @default.
• W1987679241 hasConcept C66187686 @default.
• W1987679241 hasConcept C74561354 @default.
• W1987679241 hasConcept C78434282 @default.
• W1987679241 hasConcept C79794668 @default.
• W1987679241 hasConcept C85080765 @default.
• W1987679241 hasConcept C86803240 @default.
• W1987679241 hasConcept C91881484 @default.
• W1987679241 hasConceptScore W1987679241C112613896 @default.
• W1987679241 hasConceptScore W1987679241C120665830 @default.
• W1987679241 hasConceptScore W1987679241C121332964 @default.
• W1987679241 hasConceptScore W1987679241C159467904 @default.
• W1987679241 hasConceptScore W1987679241C159985019 @default.
• W1987679241 hasConceptScore W1987679241C165330911 @default.
• W1987679241 hasConceptScore W1987679241C17729963 @default.
• W1987679241 hasConceptScore W1987679241C181500209 @default.
• W1987679241 hasConceptScore W1987679241C184779094 @default.

• next