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dc.contributor.authorZhao, B
dc.contributor.authorBai, Sai
dc.contributor.authorKim, Vincent
dc.contributor.authorLamboll, Robin
dc.contributor.authorShivanna, Ravichandran
dc.contributor.authorAuras, Florian
dc.contributor.authorRichter, Johannes
dc.contributor.authorYang, Le
dc.contributor.authorDai, Linjie
dc.contributor.authorAlsari, Mejd
dc.contributor.authorShe, Xiao-Jian
dc.contributor.authorLiang, Lusheng
dc.contributor.authorZhang, Jiangbin
dc.contributor.authorLilliu, Samuele
dc.contributor.authorGao, Peng
dc.contributor.authorSnaith, Henry
dc.contributor.authorWang, Jianpu
dc.contributor.authorGreenham, Neil
dc.contributor.authorFriend, Richard
dc.contributor.authorDi, Dawei
dc.date.accessioned2022-01-17T12:51:46Z
dc.date.available2022-01-17T12:51:46Z
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332741
dc.descriptionDatasets for figures in "High-efficiency perovskite–polymer bulk heterostructure light-emitting diodes" at https://doi.org/10.1038/s41566-018-0283-4 - Abstract: Perovskite-based optoelectronic devices are gaining much attention owing to their remarkable performance and low processing cost, particularly for solar cells. However, for perovskite light-emitting diodes, non-radiative charge recombination has limited the electroluminescence efficiency. Here we demonstrate perovskite–polymer bulk heterostructure light-emitting diodes exhibiting external quantum efficiencies of up to 20.1% (at current densities of 0.1–1 mA cm−2). The light-emitting diode emissive layer comprises quasi-two-dimensional and three-dimensional (2D/3D) perovskites and an insulating polymer. Photogenerated excitations migrate from quasi-2D to lower-energy sites within 1 ps, followed by radiative bimolecular recombination in the 3D regions. From near-unity external photoluminescence quantum efficiencies and transient kinetics of the emissive layer with and without charge-transport contacts, we find non-radiative recombination pathways to be effectively eliminated, consistent with optical models giving near 100% internal quantum efficiencies. Although the device brightness and stability (T50 = 46 h in air at peak external quantum efficiency) require further improvement, our results indicate the significant potential of perovskite-based photon sources.
dc.description.sponsorshipEPSRC; ERC (grant agreement no. 670405).
dc.formatExcel
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectperovskite
dc.subjectpolymer
dc.subjectlight-emitting diodes
dc.subjectphotophysics
dc.subjectultrafast spectroscopy
dc.subjectoptical modelling
dc.subjectenergy conversion
dc.titleResearch data supporting "High-efficiency perovskite-polymer bulk heterostructure light-emitting diodes"
dc.typeDataset
dc.identifier.doi10.17863/CAM.30616
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dcterms.format.xls
dc.contributor.orcidKim, Vincent [0000-0001-5170-6239]
dc.contributor.orcidShivanna, Ravichandran [0000-0002-0915-6066]
dc.contributor.orcidAuras, Florian [0000-0003-1709-4384]
dc.contributor.orcidDai, Linjie [0000-0002-1467-3041]
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidDi, Dawei [0000-0003-0703-2809]
rioxxterms.typeOther
pubs.funder-project-idEuropean Research Council (670405)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M005143/1)
datacite.issupplementto.doi10.1038/s41566-018-0283-4
datacite.issupplementto.urlhttps://www.repository.cam.ac.uk/handle/1810/286147


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)