umu.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Design rules for light-emitting electrochemical cells delivering bright luminance at 27.5 percent external quantum efficiency
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. LunaLEC AB. (The Organic Photonics and Electronics Group)ORCID-id: 0000-0003-1274-5918
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. LunaLEC AB. (The Organic Photonics and Electronics Group)ORCID-id: 0000-0002-7811-8098
(The Organic Photonics and Electronics Group)ORCID-id: 0000-0003-3481-5163
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. (The Organic Photonics and Electronics Group)
Vise andre og tillknytning
2017 (engelsk)Inngår i: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 8, artikkel-id 1190Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The light-emitting electrochemical cell promises cost-efficient, large-area emissive applications, as its characteristic in-situ doping enables use of air-stabile electrodes and a solution-processed single-layer active material. However, mutual exclusion of high efficiency and high brightness has proven a seemingly fundamental problem. Here we present a generic approach that overcomes this critical issue, and report on devices equipped with air-stabile electrodes and outcoupling structure that deliver a record-high efficiency of 99.2 cd A(-1) at a bright luminance of 1910 cd m(-2). This device significantly outperforms the corresponding optimized organic light-emitting diode despite the latter employing calcium as the cathode. The key to this achievement is the design of the host-guest active material, in which tailored traps suppress exciton diffusion and quenching in the central recombination zone, allowing efficient triplet emission. Simultaneously, the traps do not significantly hamper electron and hole transport, as essentially all traps in the transport regions are filled by doping.

sted, utgiver, år, opplag, sider
Nature Publishing Group, 2017. Vol. 8, artikkel-id 1190
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-141807DOI: 10.1038/s41467-017-01339-0ISI: 000413894100012PubMedID: 29085078OAI: oai:DiVA.org:umu-141807DiVA, id: diva2:1160630
Tilgjengelig fra: 2017-11-27 Laget: 2017-11-27 Sist oppdatert: 2018-06-09bibliografisk kontrollert

Open Access i DiVA

fulltext(2594 kB)173 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2594 kBChecksum SHA-512
9c66448f2f4c634d756757bd8dea3c67461b388113c68a9e719469ecc067e8c5335a7a15a9bfb63ffcdf15595ade6dc6eb26875e5192b5891e352bb42d29a4de
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstPubMed

Personposter BETA

Tang, ShiSandström, AndreasLundberg, PetterLanz, ThomasLarsen, ChristianEdman, Ludvig

Søk i DiVA

Av forfatter/redaktør
Tang, ShiSandström, AndreasLundberg, PetterLanz, ThomasLarsen, ChristianEdman, Ludvig
Av organisasjonen
I samme tidsskrift
Nature Communications

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 173 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
pubmed
urn-nbn

Altmetric

doi
pubmed
urn-nbn
Totalt: 539 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf