Emission Properties, Solubility, Thermodynamic Analysis and NMR Studies of Rare-Earth Complexes with Two Different Phosphine OxidesReport as inadecuate


Emission Properties, Solubility, Thermodynamic Analysis and NMR Studies of Rare-Earth Complexes with Two Different Phosphine Oxides


Emission Properties, Solubility, Thermodynamic Analysis and NMR Studies of Rare-Earth Complexes with Two Different Phosphine Oxides - Download this document for free, or read online. Document in PDF available to download.

Corporate Research & Development Centre, Toshiba Corporation, 1 Komukai-Toshiba-cho, Saiwai-ku, Kawasaki 212-8582, Japan





Abstract The paper proposes novel molecular designs for rare-earth complexes involving the introduction of two different phosphine oxide structures into one rare-earth ion. These designs are effective for improving solubility and emission intensity. Additionally, the complexes are indispensable for realizing high performances in LEDs and security media. The thermodynamic properties of EuIII complexes are correlated with the solubility. Correlations between coordination structures and emission intensity were explained by NMR analysis. The luminous flux of red LED devices with EuIII complexes is very high 20 mA, 870 m lumen. A new white LED has its largest spectra intensity in the red region and a human look much more vividly under this light. View Full-Text

Keywords: EuIII complex; TbIII complex; bis-phosphine oxide; solubility; emission intensity; LED EuIII complex; TbIII complex; bis-phosphine oxide; solubility; emission intensity; LED





Author: Hiroki Iwanaga

Source: http://mdpi.com/



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