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
Ultra-Bright Near-Infrared Perovskite Light-Emitting Diodes with Reduced Efficiency Roll-off
CNR Nanotec, Italy; Univ Salento, Italy.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Nanjing Tech Univ Nanjing Tech, Peoples R China.
Nanjing Tech Univ Nanjing Tech, Peoples R China.
Visa övriga samt affilieringar
2018 (Engelska)Ingår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, artikel-id 15496Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Herein, an insulating biopolymer is exploited to guide the controlled formation of micro/nano-structure and physical confinement of alpha-delta mixed phase crystalline grains of formamidinium lead iodide (FAPbI(3)) perovskite, functioning as charge carrier concentrators and ensuring improved radiative recombination and photoluminescence quantum yield (PLQY). This composite material is used to build highly efficient near-infrared (NIR) FAPbI(3) Perovskite light-emitting diodes (PeLEDs) that exhibit a high radiance of 206.7 W/sr*m(2), among the highest reported for NIR-PeLEDs, obtained at a very high current density of 1000 mA/cm(2), while importantly avoiding the efficiency roll-off effect. In depth photophysical characterization allows to identify the possible role of the biopolymer in i) enhancing the radiative recombination coefficient, improving light extraction by reducing the refractive index, or ii) enhancing the effective optical absorption because of dielectric scattering at the polymer-perovskite interfaces. Our study reveals how the use of insulating matrixes for the growth of perovskites represents a step towards high power applications of PeLEDs.

Ort, förlag, år, upplaga, sidor
NATURE PUBLISHING GROUP , 2018. Vol. 8, artikel-id 15496
Nationell ämneskategori
Annan fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-152616DOI: 10.1038/s41598-018-33729-9ISI: 000447707900011PubMedID: 30341317OAI: oai:DiVA.org:liu-152616DiVA, id: diva2:1262097
Anmärkning

Funding Agencies|Regione Puglia through Samset2018 [r_puglia/A00_137/PROT/17/07/2017/001578]; MIUR (Italian Ministry of University and Research) through PRIN PERovskite-based Solar cells: towards high Efficiency and lOng-term stability (PERSEO) [20155LECAJ]; Fondazione di Sardegna - Convenzione triennale tra la Fondazione di Sardegna e gli Atenei Sardi Regione Sardegna [L.R. 7/2007, F72F16003040002]; SIR project "Two-Dimensional Colloidal Metal Dichalcogenides based Energy-Conversion Photovoltaics" (2D ECO), Bando SIR (Scientific Independence of young Researchers) 2014 MIUR Decreto Direttoriale 23 gennaio 2014 [197, RBSI14FYVD, CUP: B82I15000950008]; Regione Puglia; ARTI [LSBC6N4, GOWMB21]; China Scholarship Council

Tillgänglig från: 2018-11-09 Skapad: 2018-11-09 Senast uppdaterad: 2018-12-03

Open Access i DiVA

fulltext(2712 kB)75 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2712 kBChecksumma SHA-512
771f38de419f92396b9cf2022f498d8fc03aa1f6fed06120e2cd2a57eeac8ec7b0fa10480516649f91b20dbc5c90ddbee12d451c6e9f4682eb3341568f61fbc9
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextPubMed

Sök vidare i DiVA

Av författaren/redaktören
Yuan, ZhongchengGao, Feng
Av organisationen
Biomolekylär och Organisk ElektronikTekniska fakulteten
I samma tidskrift
Scientific Reports
Annan fysik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 75 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 114 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