Synthesis and photo- and electroluminescent properties of copolyfluorenes with nile red fragments in side chains

Носова, Г. И.; Lypenko, D. A.; Smyslov, R. Yu.; Berezin, I. A.; Zhukova, E. V.; Mal’tsev, É. I.; Dmitriev, Artem V.; Литвинова, Л. С.; Solovskaya, N. A.; Dobrokhotov, O. V.; Абрамов, И. Г.; Yakimanskiĭ, A. V.

doi:10.1134/s1560090414010072

Cited by 13 publications

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“…Four intense absorption peaks in the range of 250-500 nm were observed for the monomer iridium complex. According to the literature [18,19], the peaks located at 285 nm and 346 nm are corre sponded to spin allowed 1 π-π* electronic transition of cyclometalated ligand. On the other hand, the absorp tion bands at 404 and 467 nm are assigned to spin allowed metal to ligand charge transfer ( 1 MLCT) and spin forbidden metal to ligand charge transfer ( 3 MLCT), respectively.…”

Section: Resultsmentioning

confidence: 86%

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Synthesis and optoelectric properties of fluorene-alt-benzene organic phosphorescent polymers containing pendent cyclometalated iridium complex

et al. 2014

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A series of novel phosphorescent polymers consisting of fluorene alt benzene as building block in the main chain and cyclometalated iridium complex as the pendent in the branch were synthesized by coupling polymerization. All of these resulting polymers presented a good thermal stability, an intense absorption in the region of 300-400 nm and a bright blue emission in solution. On contrary, the polymers exhibited dual emission spectra originated from the backbones and iridium complex unit in the neat film. Polymer organic light emitting diodes employing these polymers as the single emissive layer with the con figuration of ITO/PEDOT : PSS (50 nm)/phosphorescent polymer (45 nm)/LiF (0.5 nm)/Al (150 nm) were fabricated. The devices revealed a maximum brightness 43 cd/m 2 with a low molar concentration of iridium complex (1%).

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Section: Resultsmentioning

confidence: 86%

“…oped recently. Additionally, these phosphorescent polymers have a lot of merits with simple synthetic method, easy light color tunable and potential appli cation for spin coating or ink jet printing [14][15][16][17][18][19][20][21]. Therefore, the phosphorescent polymers have attracted much attention for the application of PhPLEDs.…”

Section: Introductionmentioning

confidence: 99%