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A thin film electroluminescence cell with the structure of ITO /PPV /PVK∶Eu(TTA)_4C_5H_5NC_(16)H_(33)∶PBD /Alq 3 /Al has been fabricated.Red emissio n with a very sharp spectral band at 614nm was observed and a maximum luminance of 20cd·m -2 at 36V was obtained from the spin-coated device.The full width at half maximum of lu-minescent spectrum is less than 10nm.
A thin film electroluminescence cell with the structure of ITO / PPV / PVK: Eu (TTA) _4C_5H_5NC_ (16) H_ (33): PBD / Alq 3 / Al has been fabricated. Red emissio n with a very sharp spectral band at 614 nm was observed and a maximum luminance of 20 cd · m -2 at 36V was obtained from the spin-coated device. The full width at half maximum of the lu-minescent spectrum is less than 10 nm.