We present a single layer, polymer white light emitting diode (WOLED) based on novel organic lanthanide complexes. The device is solution processed and possesses CIE coordinates of (0.33, 0.38), corresponding to a high color purity white light emission. The electroluminescence in this diode is found to originate from both the direct charge trapping on the lanthanide complexes and from the efficient diffusion-assisted long-range energy transfer between the conductive matrix and these emissive dopants. An expression for the steady-state transfer efficiency is given, the role of excitation diffusion in the system under study is quantitatively evaluated, and the values for the singlet exciton diffusion coefficients and diffusion lengths in the host are determined. © the Owner Societies 2009.

Mezyk, J., Mroz, W., Mech, A., Giovanella, U., Meinardi, F., Botta, C., et al. (2009). Diffusion-mediated resonant energy transfer in lanthanide-based polymer white-light-emitting diodes. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 11, 10152-10156 [10.1039/b910668e].

Diffusion-mediated resonant energy transfer in lanthanide-based polymer white-light-emitting diodes

MEZYK, JAKUB JAN;MEINARDI, FRANCESCO;TUBINO, RICCARDO
2009

Abstract

We present a single layer, polymer white light emitting diode (WOLED) based on novel organic lanthanide complexes. The device is solution processed and possesses CIE coordinates of (0.33, 0.38), corresponding to a high color purity white light emission. The electroluminescence in this diode is found to originate from both the direct charge trapping on the lanthanide complexes and from the efficient diffusion-assisted long-range energy transfer between the conductive matrix and these emissive dopants. An expression for the steady-state transfer efficiency is given, the role of excitation diffusion in the system under study is quantitatively evaluated, and the values for the singlet exciton diffusion coefficients and diffusion lengths in the host are determined. © the Owner Societies 2009.
Articolo in rivista - Articolo scientifico
Energy Transfer, OLED
English
10152
10156
Mezyk, J., Mroz, W., Mech, A., Giovanella, U., Meinardi, F., Botta, C., et al. (2009). Diffusion-mediated resonant energy transfer in lanthanide-based polymer white-light-emitting diodes. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 11, 10152-10156 [10.1039/b910668e].
Mezyk, J; Mroz, W; Mech, A; Giovanella, U; Meinardi, F; Botta, C; Vercelli, B; Tubino, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/7255
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