Rare Earth Complex as a High-Efficiency Emitter in an Electroluminescent Device (pages 1241–1245)
Z. R. Hong, C. J. Liang, R. G. Li, W. L. Li, D. Zhao, D. Fan, D. Y. Wang, B. Chu, F. X. Zang, L.-S. Hong and S.-T. Lee
Version of Record online: 17 AUG 2001 | DOI: 10.1002/1521-4095(200108)13:16<1241::AID-ADMA1241>3.0.CO;2-6
A red-light emitting europium complex(see Figure) is investigated here as an alternative to traditional fluorescent materials, which have an inherent electroluminescence (EL) efficiency limited to 25 % of their photoluminescence (PL) efficiency. It is shown that by optimizing the structure of Eu complex–based devices significant improvements in the EL efficiency and stability can be obtained.