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

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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
Boosting Perovskite Light-Emitting Diode Performance via Tailoring Interfacial Contact
Soochow Univ, Peoples R China; Soochow Univ, Peoples R China.
Soochow Univ, Peoples R China; Soochow Univ, Peoples R China.
Chinese Acad Sci, Peoples R China.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Visa övriga samt affilieringar
2018 (Engelska)Ingår i: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 10, nr 28, s. 24320-24326Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Solution-processed perovskite light-emitting diodes (LEDs) have attracted wide attention in the past several years. However, the overall efficiency and stability of perovskite-based LEDs remain inferior to those of organic or quantum dot LEDs. Nonradiative charge recombination and the unbalanced charge injection are two critical factors that limit the device efficiency and operational stability of perovskite LEDs. Here, we develop a strategy to modify the interface between the hole transport layer and the perovskite emissive layer with an amphiphilic conjugated polymer of poly[(9,9-bis(3-(N,N-dimethylamino)propy1)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN). We show evidences that PFN improves the quality of the perovskite film, which effectively suppresses nonradiative recombination. By further improving the charge injection balance rate, a green perovskite LED with a champion current efficiency of 45.2 cd/A, corresponding to an external quantum efficiency of 14.4%, is achieved. In addition, the device based on the PFN layer exhibits improved operational lifetime. Our work paves a facile way for the development of efficient and stable perovskite LEDs.

Ort, förlag, år, upplaga, sidor
AMER CHEMICAL SOC , 2018. Vol. 10, nr 28, s. 24320-24326
Nyckelord [en]
perovskite; light-emitting diodes; charge carrier injection; high efficiency; stability
Nationell ämneskategori
Den kondenserade materiens fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-150261DOI: 10.1021/acsami.8b07438ISI: 000439528400099PubMedID: 29926721OAI: oai:DiVA.org:liu-150261DiVA, id: diva2:1239764
Anmärkning

Funding Agencies|National Key Research and Development Program of China [2016YFA0202402]; National Natural Science Foundation of China [91123005, 61674108, 11550110176, 11605278, 11675252]; Priority Academic Program Development of Jiangsu Higher Education Institutions; 111 program; Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC); VINNMER

Tillgänglig från: 2018-08-17 Skapad: 2018-08-17 Senast uppdaterad: 2018-08-17

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMed

Sök vidare i DiVA

Av författaren/redaktören
Bai, Sai
Av organisationen
Biomolekylär och Organisk ElektronikTekniska fakulteten
I samma tidskrift
ACS Applied Materials and Interfaces
Den kondenserade materiens fysik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 35 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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