Structurally robust phosphorescent [Pt(O^N^C^N)] emitters for high performance organic light-emitting devices with power efficiency up to 126 lm W−1 and external quantum efficiency over 20%,
Cheng, G., Kui S. C. F., Ang W. - H., Ko M. - Y., Chow P. - K., Kwong C. - L., Kwok C. - C., Ma Chensheng, Guan Xiangguo, Low K. - H., et al.
, Chem. Sci., Volume 5 , (2014)