Methoxyphenyl indenopyrazoloquinoline derivatives as green fluorescent emitters for polymer based electroluminescent devices

Absorption and Fluorescence Spectra of Heterocyclic Isomers from Long-Range-Corrected Density Functional Theory in Polarizable Continuum Approach

“…Heterocyclic organic compounds attract significant attention due to growing number of their applications in organic electronics and/or optoelectronics, mainly as materials used in production of organic field-effect transistors, , light emitting diodes and electroluminescence displays, − photovoltaic devices, , dye lasers, , etc. The basic idea behind the investigations usually lies in a search of new organic dyes that exhibit full color gamut, high fluorescence efficiency and quantum yield, tunable emission wavelength, or bandwidth.…”

“…27,28 However, quite recent spectroscopic studies have revealed that such heterocyclic isomers may be also considered as novel efficient dyes for luminescent or electroluminescent applications in green-yellow region of the visible spectra. 7,29 The annulated azafluoranthene and azulene dyes were originally synthesized by Danel and co-workers 20 from triphenylpyrazoloquinoline derivatives. Pirazoloquinolines itself are known as efficient fluorescent and electroluminescent materials preferably in blue, rarely blue-green regions of the visible spectra.…”

“…Recent progress in the heterocycle organic chemistry has resulted in development of novel annulated analogues of azafluoranthenes and azulenes − representing the heterocyclic five- and seven-membered regioisomers, respectively. Similar organic materials were originally of interest for pharmacology, as efficient tissues oxygenators and antidepressant agents, , or biotechnology compounds used for binding of macromolecules, particularly as efficient DNA intercalators. , However, quite recent spectroscopic studies have revealed that such heterocyclic isomers may be also considered as novel efficient dyes for luminescent or electroluminescent applications in green-yellow region of the visible spectra. , The annulated azafluoranthene and azulene dyes were originally synthesized by Danel and co-workers from triphenylpyrazoloquinoline derivatives. Pirazoloquinolines itself are known as efficient fluorescent and electroluminescent materials preferably in blue, rarely blue-green regions of the visible spectra. − ,− Cyclization of triphenylpirazoloquinoline derivatives into the five or seven-membered heterocyclic regioisomers provides a significant red shift of the emission and first absorption bands that may be of interest for a number of applications.…”

Ternary organic solar cells doped methoxyphenyl indenopyrazoloquinoline derivatives

“…The methoxyphenyl indenopyrazoloquinoline derivatives have been previously investigated and accepted as promising compounds for organic light emitting diodes [26]. The primary motivation for adding another component was to widen the absorption spectrum.…”

Influence of the Temperature as an Environmental Factor on the Electrophysical Behavior of Flexible Polymeric Luminescent Devices

“…A great number of potential applications of organic semiconductor and polymeric materials for use in electronics and optoelectronic devices such as field-effect transistors, solar cells, and organic light-emitting diodes are found [1]. Conjugated polymers are especially modern topic in the research and developing area in this field [2]. Many soluble and semiconducting luminescent polymers with great variety of electrooptical properties were recently synthesized [3].…”