Details

Autor(en) / Beteiligte

• Kotowicz, Sonia
• Małecki, Jan Grzegorz
• Cytarska, Joanna
• Baranowska-Łączkowska, Angelika
• Siwy, Mariola
• Łączkowski, Krzysztof Z
• Szalkowski, Marcin
• Maćkowski, Sebastian
• Schab-Balcerzak, Ewa

Titel

Effect of N-phenyl substituent on thermal, optical, electrochemical and luminescence properties of 3-aminophthalimide derivatives

Ist Teil von

• Scientific reports, 2023-11, Vol.13 (1), p.19801-19801, Article 19801

Ort / Verlag

London: Nature Publishing Group

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• Abstract The seven N -phthalimide derivatives substituted with the amine group at the 3-C position in the phenylene ring were synthesized. The effect of N -substituent chemical structure was investigated. The thermal, electrochemical and optical studies were performed and supported by the density functional theory calculations (DFT). The electrochemical investigations of the synthesized low-molecular phthalimides revealed the one oxidation and reduction process with the HOMO energy level under − 5.81 eV and energy-band gap below 3 eV. The N -phthalimide derivatives were emitted light in a blue spectral region in solutions (in polar and non-polar) with the quantum yield between 2 and 68%, dependent on the substituent at the nitrogen atom, solvent and concentration. The N -phthalimide derivatives were emissive also in a solid state as a thin film and powder. They were tested as a component of the active layer with PVK:PBD matrix and as an independent active layer in the organic light-emitting diodes. The registered electroluminescence spectra exhibited the maximum emission band in the 469–505 nm range, confirming the possibility of using N -phthalimides with PVK:PBD matrix as the blue emitters.