Time filter

Source Type

Fan Q.,Key Laboratory of Environment Friendly Chemistry and Application of the Ministry of Education | Liu Y.,Key Laboratory of Environment Friendly Chemistry and Application of the Ministry of Education | Hao Z.,Key Laboratory of Environment Friendly Chemistry and Application of the Ministry of Education | Li C.,South China University of Technology | And 4 more authors.
Science China Chemistry | Year: 2015

Polymer light-emitting diodes (PLEDs) containing Eu(DBM)3(BrDPPz) (DBM is dibenzoylmethane, and BrDPPz is 11-bromo-dipyrido[3,2-a:2′,3′-c]phenazine) doped in a blend of poly(9,9-dioctylfluorene) (PFO) and 2-tert-butylphenyl-5-biphenyl-1,3,4-oxadiazole (PBD) as the host matrix are reported. Eu(DBM)3(BrDPPz) exhibited high thermal stability and intense UV-Vis absorption. Narrow-bandwidth red emission at 612 nm with a full width at half-maximum (FWHM) of 14.0 nm was observed from Eu(DBM)3(BrDPPz) in these double-layered PLEDs at dopant concentrations from 1 wt% to 8 wt%. For the PLED containing 1 wt% Eu(DBM)3(BrDPPz), a maximum luminance of 829 cd/m2 at 153.5 mA/cm2, highest external quantum efficiency of 1.70% at 2.1 mA/cm2 and maximum luminance of 0.74 cd/A at 4.31 mA/cm2 were obtained. © 2015 Science China Press and Springer-Verlag Berlin Heidelberg

Loading Key Laboratory of Environment Friendly Chemistry and Application of the Ministry of Education collaborators
Loading Key Laboratory of Environment Friendly Chemistry and Application of the Ministry of Education collaborators