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Suppressing aggrega...
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Congrave, Daniel G.Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.
(författare)
Suppressing aggregation induced quenching in anthracene based conjugated polymers
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
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2021
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Royal Society of Chemistry,2021
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-441966
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-441966URI
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https://doi.org/10.1039/d1py00118cDOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Anthracene is a highly valuable building block for luminescent conjugated polymers, particularly when a large singlet-triplet energy gap (Delta E-ST) is desired. Unfortunately, the extended pi system of anthracene imparts a strong tendency for polymer aggregation, resulting in detrimental effects on its solid state photophysics. A large decrease in photoluminescence quantum yield (PLQY, phi(F)) on going from solution to the solid state is especially common, represented in terms of a low phi(R) (phi(R) = phi(F film)/phi(F sol.)). Significant and undesirable red-shifting of fluorescence in the solid state is also typical due to processes such as excimer formation. In this work a series of alkylene-encapsulated conjugated anthracene polymers is developed to overcome these challenging problems. We demonstrate a promising material which displays a good solid state PLQY that is effectively unchanged compared to solution measurements (phi(R) similar to 1, phi(F film) similar to 40%), alongside an identical PL 0-0 transition wavelength in solution and thin film. Such a direct transfer of luminescence properties from solution to the solid state is remarkable for a conjugated polymer and completely unprecedented for one based on anthracene.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Drummond, Bluebell H.Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
(författare)
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Gray, Victor,Dr,1988-Uppsala universitet,Fysikalisk kemi,Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.(Swepub:uu)vicgr594
(författare)
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Bond, Andrew D.Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.
(författare)
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Rao, AkshayUniv Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
(författare)
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Friend, Richard H.Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
(författare)
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Bronstein, HugoUniv Cambridge, Dept Chem, Cambridge CB2 1EW, England.;Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
(författare)
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Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Polymer Chemistry: Royal Society of Chemistry12:12, s. 1830-18361759-99541759-9962
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