Towards rainbow photo/electro-luminescence in copper(I) complexes with the versatile bridged bis-pyridyl ancillary ligand.

Gilbert Umuhire Mahoro, Elisa Fresta, Margaux Elie, Davide di Nasso, Qi Zhang, Jean-François Lohier, Jean-Luc Renaud, Mathieu Linares, Reinhold Wannemacher, Juan Cabanillas-Gonzalez, Rubén D Costa, Sylvain Gaillard

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The synthesis and characterization of a family of copper(i) complexes bearing a bridged bis-pyridyl ancillary ligand is reported, highlighting how the bridge nature impacts the photo- and electro-luminescent behaviours within the family. In particular, the phosphonium bridge led to copper(i) complexes featuring good electrochemical stability and high ionic conductivity, as well as a stark blue-to-orange luminescence shift compared to the others. This resulted in high performance light-emitting electrochemical cells reaching stabilities of 10 mJ at ca. 40 cd m-2 that are one order of magnitude higher than those of the other complexes. Overall, this work sheds light onto the crucial role of the bridge nature of the bis-pyridyl ancillary ligand on the photophysical features, film forming and, in turn, on the final device performances.
Original languageEnglish (US)
JournalDalton transactions (Cambridge, England : 2003)
DOIs
StatePublished - Jul 21 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-07-27
Acknowledgements: This work was supported by the “Ministère de la Recherche et des Nouvelles Technologies”, CNRS (Centre National de la Recherche Scientifique) and the LABEX SynOrg (ANR-11-LABX-0029). S. G. acknowledges the “Région Normandie” (M.E.) and Normandie University (G.U.M.) for their fundings. R. D. C. acknowledges the European Union's Horizon 2020 research and innovation FET-OPEN under grant agreement ARTIBLED No. 863170, the ERC-Co InOutBioLight No. 816856, and the MSCA-ITN STiBNite No. 956923. J.C.G. and R.W. acknowledge support by the Spanish Ministerio de Ciencia, Innovación y Universidades (project RTI2018-097508-B-I00), as well as support from the European Union structural funds and the Comunidad de Madrid (Project S2018/NMT-4511). IMDEA Nanociencia acknowledges support from the “Severo Ochoa” Programme for Centres of Excellence in R&D (MINECO, grant SEV-2016-0686). M.L. thanks SeRC (Swedish e-Science Research Center) for funding and SNIC (Swedish National Infrastructure for Computing) for computing resources.

ASJC Scopus subject areas

  • Inorganic Chemistry

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