Tris(8-hydroxyquinoline)aluminium in a polymer matrix as an active layer for green OLED applications

Authors

  • Małgorzata Sypniewska Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, Grudziądzka 5, Torun 87-100, Poland https://orcid.org/0000-0002-6425-1103
  • Monika Pokladko-Kowar Department of Physics, Cracow University of Technology, Podchorążych 1, 30-084 Krakow, Poland https://orcid.org/0000-0002-8413-5185
  • Anna Kaczmarek-Kedziera Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun 87-100, Poland https://orcid.org/0000-0002-4931-8701
  • Iulia E. Brumboiu Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, Grudziądzka 5, Torun 87-100, Poland https://orcid.org/0000-0003-1671-8298
  • Viviana Figà Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università di Palermo, Viale delle Scienze, Parco d’Orleans II, 90128 Palermo, Italy https://orcid.org/0000-0002-0290-2425
  • Aleksandra Apostoluk Université de Lyon, INSA Lyon, ECL, CNRS, UCBL, CPE Lyon, INL, UMR5270, 69621 Villeurbanne, France https://orcid.org/0000-0002-9851-9649
  • Peng Song State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China; School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
  • Junyan Liu State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China; School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China https://orcid.org/0000-0002-8331-5117
  • Robert Szczesny Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun 87-100, Poland https://orcid.org/0000-0002-6313-9574
  • Ewa Gondek Department of Physics, Cracow University of Technology, Podchorążych 1, 30-084 Krakow, Poland https://orcid.org/0000-0002-3692-1253
  • Beata Derkowska-Zielinska Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, Grudziądzka 5, Torun 87-100, Poland https://orcid.org/0000-0002-0269-2771

DOI:

https://doi.org/10.24425/opelre.2023.146105

Keywords

tris(8-hydroxyquinoline)aluminium, OLED, photo- and electro-luminescence, spectroscopic ellipsometry, DFT calculation

Abstract

Tris(8-hydroxyquinoline)aluminium with poly(N-vinylcarbazole) (Alq 3:PVK) or polystyrene sulfonate (Alq 3: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 Alq 3:PVK and Alq 3:PSS were characterised using absorption spectroscopy and spectroscopic ellipsometry. It was found that the absorption spectrum of Alq 3:PVK is characterised by four bands, while for Alq 3: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 Alq 3 is also presented. Theoretical density functional theory calculations provide the insight into the interaction and nature of Alq 3:PVK and Alq 3:PSS excited states. Finally, the organic light-emitting diode (OLED) structure based on Alq 3:PVK was fabricated and showed strong electro-luminescence with a green emission at 520 nm. The results of the device show that the ITO/PEDOT:PSS/Alq 3:PVK/Ca/Al system can be useful for the production of low-cost OLEDs with Alq 3:PVK as an active layer for future lighting applications.

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Published

2026-03-12

How to Cite

Sypniewska, Małgorzata, et al. “Tris(8-hydroxyquinoline)aluminium in a Polymer Matrix As an Active Layer for Green OLED Applications”. Opto-Electronics Review, vol. 31, no. 2, Mar. 2026, p. e146105, doi:10.24425/opelre.2023.146105.

Issue

Vol. 31 No. 2 (2023): (contains i.a. Special Section TERFEL)

Section

Articles

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Copyright (c) 2026 Opto-Electronics Review

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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