- Tytuł:
- Tris(8-hydroxyquinoline)aluminium in a polymer matrix as an active layer for green OLED applications
- Autorzy:
-
Sypniewska, Małgorzata
Pokladko-Kowar, Monika
Kaczmarek-Kedziera, Anna
Brumboiu, Iulia E.
Figà, Viviana
Apostoluk, Aleksandra
Song, Peng
Liu, Junyan
Szczesny, Robert
Gondek, Ewa
Derkowska-Zielinska, Beata - Powiązania:
- https://bibliotekanauki.pl/articles/2204187.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
- Tematy:
-
Tris(8-hydroxyquinoline)aluminium
OLED
photo-and electro-luminescence
spectroscopic ellipsometry
DFT calculation - Opis:
- Tris(8-hydroxyquinoline)aluminium with poly(N-vinylcarbazole) (Alq₃:PVK) or polystyrene sulfonate (Alq₃:PSS) were deposited by spin-coating on glass and silicon substrates. SEM measurements show that relatively smooth thin films were obtained. Fourier transform infrared measurements were performed to confirm the composition of the samples. The optical properties of thin films containing Alq₃:PVK and Alq₃:PSS were characterised using absorption spectroscopy and spectroscopic ellipsometry. It was found that the absorption spectrum of Alq₃:PVK is characterised by four bands, while for Alq₃:PSS only three bands are visible. The photoluminescence of the studied thin layers shows a peak with a maximum at about 500 nm. Additionally, cyclic voltammetry of Alq₃ is also presented. Theoretical density functional theory calculations provide the insight into the interaction and nature of Alq₃:PVK and Alq₃:PSS excited states. Finally, the organic light-emitting diode (OLED) structure based on Alq₃:PVK was fabricated and showed strong electroluminescence with a green emission at 520 nm. The results of the device show that the ITO/PEDOT:PSS/Alq₃:PVK/Ca/Al system can be useful for the production of low-cost OLEDs with Alq₃:PVK as an active layer for future lighting applications.
- Źródło:
-
Opto-Electronics Review; 2023, 31, 2; art. no. e146105
1230-3402 - Pojawia się w:
- Opto-Electronics Review
- Dostawca treści:
- Biblioteka Nauki
Artykuł