Enhanced stability of blue-green light-emitting electrochemical cells based on a cationic iridium complex with 2-(1-phenyl-1H-pyrazol-3-yl)pyridine as the ancillary ligand

Lei He; Lian Duan; Juan Qiao; Deqiang Zhang; Liduo Wang; Yong Qiu

doi:10.1039/c1cc11263e

Enhanced stability of blue-green light-emitting electrochemical cells based on a cationic iridium complex with 2-(1-phenyl-1H-pyrazol-3-yl)pyridine as the ancillary ligand

Chem Commun (Camb). 2011 Jun 14;47(22):6467-9. doi: 10.1039/c1cc11263e. Epub 2011 May 9.

Authors

Lei He¹, Lian Duan, Juan Qiao, Deqiang Zhang, Liduo Wang, Yong Qiu

Affiliation

¹ Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, PR China.

PMID: 21552618
DOI: 10.1039/c1cc11263e

Abstract

A new cationic iridium complex has been developed with 2-(1-phenyl-1H-pyrazol-3-yl)pyridine as the ancillary ligand, which bears a pendant protective phenyl ring within the molecule; blue-green light-emitting electrochemical cells (LECs) based on the complex show dramatically enhanced stability compared to the LEC based on a similar complex without pendant phenyl rings.