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  • Danyliv, YanLviv Polytech Natl Univ, Stepan Bandera 12, UA-79013 Lvov, Ukraine. (author)

Carbazole-s-sulfobenzimide derivative exhibiting mechanochromic thermally activated delayed fluorescence as emitter for flexible OLEDs : Theoretical and experimental insights

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • Elsevier,2022
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:uu-488567
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-488567URI
  • https://doi.org/10.1016/j.dyepig.2022.110841DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-190093URI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding Agencies|European Social Fund [09.3.3-LMT-K-712, 09.3.3-LMT-K-712-19-0136]; Ministry of Education and Science of Ukraine [0121U107533, 0121U109506]; Marie Curie International Research Staff Exchange Scheme within FP7- Peoples EU [PIRSES-GA-2013-612670]; Carl Tryggers Stiftelse (Sweden) [CTS 21:1430]; Research Council of Lithuania (LMTLT); National Super-computer Centre at Linkoping University (NSC) - Swedish Research Council [2018-05973]; project of scientific cooperation program between Lithuania and Ukraine "Development of highly efficient white light-emitting diodes utilizing organic emitters with exciplex and thermally-assisted fluorescence for lighting applications (LUW)" [S-LU-20-9]
  • For the first time exploiting sulfobenzimide moiety as an acceptor unit, the new type of donor-sigma-acceptor emitter exhibiting thermally activated delayed fluorescence (TADF) is demonstrated. In different solutions, the synthesized compound emits light resulting from either locally excited carbazole moiety or trough-space charge transfer (exciplex-like) between carbazole and sulfobenzimide units. In the solid state, this emitter demonstrates aggregation-induced emission enhancement and different emission colours due to its different conformations. The mechanoluminescence of the donor-sigma-acceptor compound was observed and studied in detail by experimental and theoretical approaches including single-crystal and powder X-ray analyses. Electroluminescence of the different colours was observed when the compound was utilized as non-doped TADF emitter in rigid and flexible organic light-emitting diodes fabricated on glass or poly(ethylene terephthalate) substrates. The device fabricated on the rigid substrate exhibited the best performance with maximum current efficiency, power efficiency, and external quantum efficiency of 11.0 cd A(-1), 3.0 lm W-1, and 4.3%, respectively.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Ivaniuk, KhrystynaLviv Polytech Natl Univ, Stepan Bandera 12, UA-79013 Lvov, Ukraine. (author)
  • Danyliv, IrynaLviv Polytech Natl Univ, Stepan Bandera 12, UA-79013 Lvov, Ukraine. (author)
  • Bezvikonnyi, OleksandrKaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Pl 19, LT-50254 Kaunas, Lithuania. (author)
  • Volyniuk, DmytroKaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Pl 19, LT-50254 Kaunas, Lithuania. (author)
  • Galyna, SychUniv Savoie Mont Blanc, Univ Grenoble Alpes, CNRS, Grenoble INP,LEPMI, F-38000 Grenoble, France. (author)
  • Lazauskas, AlgirdasKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania. (author)
  • Skhirtladze, LevaniKaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Pl 19, LT-50254 Kaunas, Lithuania. (author)
  • Ågren, HansUppsala universitet,Kemisk och biomolekylär fysik,Uppsala Univ, Sweden(Swepub:uu)hanag788 (author)
  • Stakhira, PavloLviv Polytech Natl Univ, Stepan Bandera 12, UA-79013 Lvov, Ukraine. (author)
  • Karaush-Karmazin, NataliyaBohdan Khmelnytsky Natl Univ, Dept Chem & Nanomat Sci, UA-18031 Cherkassy, Ukraine. (author)
  • Ali, AmjadLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)amjal56 (author)
  • Baryshnikov, GlibLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Bohdan Khmelnytsky Natl Univ, Ukraine(Swepub:liu)gliba58 (author)
  • Grazulevicius, Juozas V.Kaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Pl 19, LT-50254 Kaunas, Lithuania. (author)
  • Lviv Polytech Natl Univ, Stepan Bandera 12, UA-79013 Lvov, Ukraine.Kaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Pl 19, LT-50254 Kaunas, Lithuania. (creator_code:org_t)

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  • In:Dyes and pigments: Elsevier2080143-72081873-3743

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