Issue 32, 2021

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

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.

Graphical abstract: Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand

Supplementary files

Article information

Article type
Paper
Submitted
24 May 2021
Accepted
14 Jul 2021
First published
21 Jul 2021

Dalton Trans., 2021,50, 11049-11060

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

G. U. Mahoro, E. Fresta, M. Elie, D. di Nasso, Q. Zhang, J. Lohier, J. Renaud, M. Linares, R. Wannemacher, J. Cabanillas-Gonzalez, R. D. Costa and S. Gaillard, Dalton Trans., 2021, 50, 11049 DOI: 10.1039/D1DT01689J

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