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Multi-colour electroluminescence of dendronic antennae containing pyrenes as light harvesters

  Articoli su Riviste JCR/ISI  (anno 2010)

Autori:  Giovanella U., Mróz W., Foggi P., Fabbrizzi P., Cicchi S., Botta C

Affiliazione Autori:  CNR, Ist Studio Macromol ISMAC, I-20733 Milan, Italy; European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, FI, Italy; Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy; INOA CNR, I-50125 Florence, Italy; Univ Florence, Dipartimento Chim Organ, I-50019 Sesto Fiorentino, FI, Italy; INSTM Italian Interuniv Consortium Mat Sci & Tech, I-50019 Sesto Fiorentino, FI, Italy

Riassunto:  Dendronic antennae systems containing pyrene units as energy donors and a styrylpyridinium derivative as energy acceptor show efficient energy transfer from the green-emitting pyrene excimer to the red-emitting acceptor. For the third dendron generation the effective screening of the pyrene units on the acceptor provides thin films showing bright red emission. Single-layer light-emitting diodes prepared by properly balancing the dendrons and donor units concentration in polyvinylcarbazole show electroluminescence from the blue, green and red components of the monomeric donor, the donor excimer and the acceptor when excitons are generated in the polymer and subsequently transferred to the molecules by resonant energy transfer.

Rivista/Giornale:  CHEMPHYSCHEM
Volume n.:  11 (3)      Pagine da: 683  a: 688
Ulteriori informazioni:  This work was partially supported by Progetto MIUR FIRB RBIP06JWBH NODIS, FIRB RBNE033KMA, PRIN 2007PBWN44 and Project WOLED of the CARIPLO Foundation.
DOI: 10.1002/cphc.200900771

*Impact Factor della Rivista: (2010) 3.340   *Citazioni: 5
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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