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Efficient Light-Emitting Diodes Based on In-Situ Self-Assembled Perovskite Nanocrystals
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-5661-8174
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-2582-1740
2018 (English)In: ORGANIC LIGHT EMITTING MATERIALS AND DEVICES XXII, SPIE-INT SOC OPTICAL ENGINEERING , 2018, Vol. 10736, article id UNSP 107361FConference paper, Published paper (Refereed)
Abstract [en]

We introduce a simple and low-cost approach -drop-coating method -for preparation of in-situ self-assembled perovskite nanocrystals for efficient light-emitting diodes. The PL spectrum of the self-assembled NFPI4 nanocrystals thin film prepared by the drop-coating method shows blue shift compared with that of the typical NFPI4 thin film prepared by spin-coating method. In addition, the PL spectra of these self-assembled nanocrystals are tuned from 765 nm to 725 nm by changing usage amounts of the perovskite precursor solution. More importantly, efficient light-emitting diodes with EQEs up to 6.8% are achieved based on these self-assembled NFPI4 nanocrystals.

Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING , 2018. Vol. 10736, article id UNSP 107361F
Series
Proceedings of SPIE, ISSN 0277-786X
Keywords [en]
self-assembled; in-situ; drop-coating; PeLEDs; nanocrystal
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-153554DOI: 10.1117/12.2319181ISI: 000452431700003ISBN: 978-1-5106-2044-5 (print)OAI: oai:DiVA.org:liu-153554DiVA, id: diva2:1273171
Conference
Conference on Organic Light Emitting Materials and Devices XXII
Note

Funding Agencies|ERC Starting Grant [717026]; Carl Tryggers Stiftelse; China Scholarship Council; European Commission Marie Sklodowska-Curie Actions [691210]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]

Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2018-12-20

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Wang, HeyongYu, HonglingLiu, XiaokeGao, Feng
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