Single-layered light-emitting diodes possessing methoxy-modified pyrazoloquinoline dyes in poly-N-vinylcarbazole matrix

Influence of dipole moments on light-emitting features of cardo-type 1H-pyrazolo[3,4-b]quinolines

“…[13][14][15][16]. Current-voltage dependences demonstrate complimentary features with respect to the EL-voltage features (compare Figs.…”

“…The presented absorption spectra are typical for the PAQ [13][14][15][16]. There are two main spectral bands: visible, the first one at range of 360-420 nm determined by inter-band p-p* transitions and the second one at range of 240-330 nm corresponded to involvement in optical transitions of more deeper bands.…”

From pirazoloquinolines to annulated azulene dyes: UV–VIS spectroscopy and quantum chemical study

“…Organic dyes and fluorescent materials attract considerable attention in a context of their potential applications in dye lasers [1,2] and electroluminescent devices mainly as fluorescent dopants [3][4][5][6] or phosphor reemitters [7]. Their electronic properties in relation to a molecular structure, chemical substitution or solvent environment effects appear in a scope of numerous experimental and theoretical studies where the optical spectroscopy methods are usually combined with a quantum chemical analysis or modeling [8,9].…”

Luminescent properties and crystal structure of novel benzanthrone dyes

“…Moreover, substituted benzanthrones are similar to other polyaromatic carbocyclic and heterocyclic compounds such as pyrazoloquinolines [10][11][12], pyrenes [13], benzofluorenes [14,15], which are used as promising dye luminophores for organic lightemitting diodes.…”