FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023341478> ?p ?o ?g. }

• W2023341478 abstract "We have investigated the energy transfer dynamics in films of a conjugated polyindenofluorene host doped with covalently attached perylene guests. By performing time-resolved measurements of the host luminescence decay under site-selective excitation conditions, we have examined the influence of exciton migration within the host on the temporal evolution of the host-guest energy transfer. We find that highly mobile excitons created at the peak of the host's inhomogeneous density of states transfer to guests considerably faster than more localized excitons created in the low-energy tail, indicating a strong contribution of exciton migration to the overall energy transfer. These effects are significantly more pronounced at low temperature $(7phantom{rule{0.3em}{0ex}}mathrm{K})$ than at ambient temperature, suggesting that for the latter, up-hill migration of excitons in the host and a broadening of their homogeneous linewidth may prevent truly site-selective excitation of localized excitons. In the asymptotic long-time limit, the observed dynamics are compatible with long-range single-step Forster energy transfer. However, at early times $(ensuremath{lesssim}10phantom{rule{0.3em}{0ex}}mathrm{ps})$ after excitation, the behavior notably deviates from this description, suggesting that diffusion-assisted energy transfer is more important in this regime. The measured changes in excitation transfer rates with temperature and excitation energy correlate well with those observed for the dynamic energy shifts of the vibronic emission peaks from the undoped polymer. Our results therefore indicate that energy-transfer rates in polymeric guest-host systems are strongly time-dependent, owing to a contribution both from exciton relaxation through incoherent hopping within the host's density of states and direct Forster energy transfer." @default.
• W2023341478 created "2016-06-24" @default.
• W2023341478 creator A5057247667 @default.
• W2023341478 creator A5072097825 @default.
• W2023341478 creator A5073881546 @default.
• W2023341478 creator A5083990706 @default.
• W2023341478 creator A5089425939 @default.
• W2023341478 date "2004-10-20" @default.
• W2023341478 modified "2023-09-27" @default.
• W2023341478 title "Time-dependent energy transfer rates in a conjugated polymer guest-host system" @default.
• W2023341478 cites W1657433554 @default.
• W2023341478 cites W1965040486 @default.
• W2023341478 cites W1977945472 @default.
• W2023341478 cites W1978049536 @default.
• W2023341478 cites W1983709955 @default.
• W2023341478 cites W1985001499 @default.
• W2023341478 cites W1986195932 @default.
• W2023341478 cites W1988332460 @default.
• W2023341478 cites W1989579457 @default.
• W2023341478 cites W1990467619 @default.
• W2023341478 cites W1996018331 @default.
• W2023341478 cites W1998024823 @default.
• W2023341478 cites W2006754666 @default.
• W2023341478 cites W2013433776 @default.
• W2023341478 cites W2013514565 @default.
• W2023341478 cites W2018991288 @default.
• W2023341478 cites W2019508948 @default.
• W2023341478 cites W2020664519 @default.
• W2023341478 cites W2023129438 @default.
• W2023341478 cites W2026128287 @default.
• W2023341478 cites W2028751253 @default.
• W2023341478 cites W2032063908 @default.
• W2023341478 cites W2038996007 @default.
• W2023341478 cites W2041962717 @default.
• W2023341478 cites W2048140227 @default.
• W2023341478 cites W2051037018 @default.
• W2023341478 cites W2052898553 @default.
• W2023341478 cites W2053323976 @default.
• W2023341478 cites W2058939146 @default.
• W2023341478 cites W2062116934 @default.
• W2023341478 cites W2073498561 @default.
• W2023341478 cites W2076386857 @default.
• W2023341478 cites W2077672272 @default.
• W2023341478 cites W2081805720 @default.
• W2023341478 cites W2088126475 @default.
• W2023341478 cites W2089116877 @default.
• W2023341478 cites W2092352676 @default.
• W2023341478 cites W2094018707 @default.
• W2023341478 cites W2094517427 @default.
• W2023341478 cites W2119258753 @default.
• W2023341478 cites W2143947426 @default.
• W2023341478 cites W2949509950 @default.
• W2023341478 doi "https://doi.org/10.1103/physrevb.70.165207" @default.
• W2023341478 hasPublicationYear "2004" @default.
• W2023341478 type Work @default.
• W2023341478 sameAs 2023341478 @default.
• W2023341478 citedByCount "73" @default.
• W2023341478 countsByYear W20233414782012 @default.
• W2023341478 countsByYear W20233414782013 @default.
• W2023341478 countsByYear W20233414782014 @default.
• W2023341478 countsByYear W20233414782015 @default.
• W2023341478 countsByYear W20233414782016 @default.
• W2023341478 countsByYear W20233414782017 @default.
• W2023341478 countsByYear W20233414782018 @default.
• W2023341478 countsByYear W20233414782020 @default.
• W2023341478 countsByYear W20233414782021 @default.
• W2023341478 countsByYear W20233414782022 @default.
• W2023341478 countsByYear W20233414782023 @default.
• W2023341478 crossrefType "journal-article" @default.
• W2023341478 hasAuthorship W2023341478A5057247667 @default.
• W2023341478 hasAuthorship W2023341478A5072097825 @default.
• W2023341478 hasAuthorship W2023341478A5073881546 @default.
• W2023341478 hasAuthorship W2023341478A5083990706 @default.
• W2023341478 hasAuthorship W2023341478A5089425939 @default.
• W2023341478 hasConcept C106447425 @default.
• W2023341478 hasConcept C121332964 @default.
• W2023341478 hasConcept C148869448 @default.
• W2023341478 hasConcept C159467904 @default.
• W2023341478 hasConcept C17729963 @default.
• W2023341478 hasConcept C184779094 @default.
• W2023341478 hasConcept C192562407 @default.
• W2023341478 hasConcept C26873012 @default.
• W2023341478 hasConcept C41999313 @default.
• W2023341478 hasConcept C49040817 @default.
• W2023341478 hasConcept C62520636 @default.
• W2023341478 hasConcept C69357855 @default.
• W2023341478 hasConcept C83581075 @default.
• W2023341478 hasConcept C97355855 @default.
• W2023341478 hasConceptScore W2023341478C106447425 @default.
• W2023341478 hasConceptScore W2023341478C121332964 @default.
• W2023341478 hasConceptScore W2023341478C148869448 @default.
• W2023341478 hasConceptScore W2023341478C159467904 @default.
• W2023341478 hasConceptScore W2023341478C17729963 @default.
• W2023341478 hasConceptScore W2023341478C184779094 @default.
• W2023341478 hasConceptScore W2023341478C192562407 @default.
• W2023341478 hasConceptScore W2023341478C26873012 @default.
• W2023341478 hasConceptScore W2023341478C41999313 @default.
• W2023341478 hasConceptScore W2023341478C49040817 @default.
• W2023341478 hasConceptScore W2023341478C62520636 @default.
• W2023341478 hasConceptScore W2023341478C69357855 @default.

• next