Blue-shifting the monomer..

Blue-shifting the monomer and excimer phosphorescence of tridentate cyclometallated platinum(II) complexes for optimal white-light OLEDs
Lisa Murphy, Pierpaolo Brulatti, Valeria Fattori, Massimo Cocchi and J. A. Gareth Williams
Chem. Commun., 2012, 48, 5817-5819
DOI: 10.1039/C2CC31330H
Received 22 Feb 2012, Accepted 26 Mar 2012
First published on the web 26 Mar 2012

By using a tridentate N^C^N-coordinating ligand, the luminescence of a cyclometallated Pt(II) complex can be shifted into the blue region, without the problematic drop-off in quantum yield observed for bidentate analogues. The combination of blue-shifted monomer and excimer allows white-emitting OLEDs with high colour rendering index to be produced.