liu.seSök publikationer i DiVA
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Investigation on voltage loss in organic triplet photovoltaic devices based on Ir complexes
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Tsinghua Univ, Peoples R China.
Tsinghua Univ, Peoples R China.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
2019 (Engelska)Ingår i: Journal of Materials Chemistry C, ISSN 2050-7526, E-ISSN 2050-7534, Vol. 7, nr 47, s. 15049-15056Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Voltage losses in singlet material-based organic photovoltaic devices (OPVs) have been intensively studied, whereas, only a few investigations on triplet material-based OPVs (T-OPVs) are reported. To investigate the voltage loss in T-OPVs, two homoleptic iridium(iii) complexes based on extended pi-conjugated benzo[g]phthalazine ligands, Ir(Ftbpa)(3) and Ir(FOtbpa)(3), are synthesized as sole electron donors. T-OPVs are fabricated by mixing two donors with phenyl-C-71-butyric acid methyl ester (PC71BM) as an electron acceptor. Insertion of oxygen-bridges as flexible inert delta-spacers in Ir(FOtbpa)(3) has slightly elevated both the lowest unoccupied molecular orbital and the highest occupied molecular orbital levels compared to those of Ir(Ftbpa)(3), which results in a lower charge transfer (CT) state energy (E-CT) for Ir(FOtbpa)(3)-based devices. However, a higher V-oc (0.88 V) is observed for Ir(FOtbpa)(3)-based devices than those of Ir(Ftbpa)(3) (0.80 V). To understand the above result, the morphologies of the two blend films are studied, which excludes the influence of morphology. Furthermore, radiative and non-radiative recombination in two devices is quantitatively investigated, which suggests that a higher V-oc can be attributed to reduced radiative and non-radiative recombination loss for the Ir(FOtbpa)(3)-based devices.

Ort, förlag, år, upplaga, sidor
ROYAL SOC CHEMISTRY , 2019. Vol. 7, nr 47, s. 15049-15056
Nationell ämneskategori
Materialkemi
Identifikatorer
URN: urn:nbn:se:liu:diva-163375DOI: 10.1039/c9tc04914bISI: 000506890600027OAI: oai:DiVA.org:liu-163375DiVA, id: diva2:1391066
Anmärkning

Funding Agencies|Swedish Foundation for International Cooperation in Research and Higher Education (STINT); Knut and Alice Wallenberg foundationKnut & Alice Wallenberg Foundation [2016.0059]; Swedish Government Research Area in Materials Science on Functional Materials at Linkoping University [200900971]; China Scholarship Council (CSC)China Scholarship Council; NSFC of ChinaNational Natural Science Foundation of China [51711530040, 51473086]; National Postdoctoral Program for Innovative Talents [BX20180159]

Tillgänglig från: 2020-02-03 Skapad: 2020-02-03 Senast uppdaterad: 2020-02-27

Open Access i DiVA

fulltext(2944 kB)15 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2944 kBChecksumma SHA-512
70bb8c9d8f90b620ed394006613686b659e9a7e13ab4b6299108d48fe2901e5890a7f32cd3c103532f1a9ff2fe715ff285b0059271d32c56facbc7fc9b8a0c92
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltext

Sök vidare i DiVA

Av författaren/redaktören
Jin, YingzhiZhang, Fengling
Av organisationen
Biomolekylär och Organisk ElektronikTekniska fakulteten
I samma tidskrift
Journal of Materials Chemistry C
Materialkemi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 15 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 31 träffar
RefereraExporteraLänk till posten
Permanent länk

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