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Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes Enabled by a Universal Crosslinking Method.

Published version
Peer-reviewed

Repository DOI


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Authors

Li, Guangru 
Rivarola, Florencia Wisnivesky Rocca 
Davis, Nathaniel JLK 
Bai, Sai 
Jellicoe, Tom C 

Abstract

The preparation of highly efficient perovskite nanocrystal light-emitting diodes is shown. A new trimethylaluminum vapor-based crosslinking method to render the nanocrystal films insoluble is applied. The resulting near-complete nanocrystal film coverage, coupled with the natural confinement of injected charges within the perovskite crystals, facilitates electron-hole capture and give rise to a remarkable electroluminescence yield of 5.7%.

Description

Keywords

crosslinking, nanocrystal, passivation, perovskite light-emitting diodes

Journal Title

Adv Mater

Conference Name

Journal ISSN

0935-9648
1521-4095

Volume Title

28

Publisher

Wiley
Sponsorship
Engineering and Physical Sciences Research Council (EP/M014797/1)
Engineering and Physical Sciences Research Council (EP/M005143/1)
Engineering and Physical Sciences Research Council (EP/J017361/1)
Engineering and Physical Sciences Research Council (EP/G037221/1)
European Research Council (259619)
European Commission (312483)
This work was supported by the EPSRC [Grant numbers EP/M005143/1, EP/J017361/1 and EP/G037221/1]. G.L. thanks Gates Cambridge Trust for funding. F.W.R.R. is grateful for financial support from CNPq [Grant number 246050/2012-8]. N.J.L.K.D. thanks the Cambridge Commonwealth European and International Trust, Cambridge Australian Scholarships and Mr Charles K. Allen for financial support. F.W.R.R., F.D.P. and C.D. acknowledge funding from the ERC under grant number 259619 PHOTO-EM. C.D. acknowledges financial support from the EU under grant number 312483 ESTEEM2. F.G. acknowledges financial support from the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linköping University.