Lanthanide imidodiphosphinate complexes Synthesis, structure and new aspects of electroluminescent properties

作者：Katkova Marina A^*; Burin Mikhail E; Logunov Alexander A; Ilichev Vasilii A; Konev Alexey N; Fukin Georgy K; Bochkarev Mikhail N

来源：Synthetic Metals, 2009, 159(14): 1398-1402.

DOI：10.1016/j.synthmet.2009.03.015

• Lanthanide complexes
• Imidodiphosphinate
• X-ray structure
• Electroluminescence
• Non-doped OLED
• Hole-blocking
• Exciplex

The lanthanide imidodiphosphinate complexes Ln(pip)(3) (Ln=Ce, Nd, Tb, Ho) were prepared from the corresponding Ln[N(SiMe(3))(2)](3) with [Ph(2)P(O)](2)NH in a quantitative yield. X-ray single structure analysis of Ce(pip)(3) has revealed that the lanthanide ion in these compounds coordinated by three bidentate [Ph(2)P(O)NP(O)Ph(2)](-) ligands and THF molecule. With respect to the organic light emitting diodes (OLED) application, the simple electroluminescent (EL) devices with a multilayer configuration ITO/TPD/Ln(pip)(3)/Yb, ITO/CBP/Ln(pip)(3)/Yb, ITO/TPD/Ln(pip)(3)/Alq(3)/Yb, ITO/TPD/Alq(3)/Ln(PiP)(3)/Yb were fabricated. It was found that the lanthanide imidodiphosphinate complexes possess the hole-blocking and electron-transporting ability and it was also observed the exciplex emission between these complexes and TPD.

• 出版日期2009-7