Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand. Issue 32 (21st July 2021)

• Record Type: Journal Article
• Authors: Mahoro, Gilbert Umuhire; Fresta, Elisa; Elie, Margaux; di Nasso, Davide; Zhang, Qi; Lohier, Jean-François; Renaud, Jean-Luc; Linares, Mathieu; Wannemacher, Reinhold; Cabanillas-Gonzalez, Juan; Costa, Rubén D.; Gaillard, Sylvain
• Is Part Of: Dalton transactions. Volume 50:Issue 32(2021)
• Page Start: 11049
• Page End: 11060
• Publication Date: 2021-07-21
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt01689j
• Languages: English
• ISSNs: 1477-9226

Abstract

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. 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.