The research paper entitled. 'Lanthanide ions (Eu3+, Er3+, Pr3+) as luminescence and charge carrier centers in Sr2TiO4', published by a research team from the Institute of Experimental Physics at the University of Gdańsk in collaboration with the Institute of Nanotechnology and Materials Engineering at the Gdańsk University of Technology, was featured on the cover of the journal Dalton Transactions.
The team composed of dr Karol Szczodrowski (UG), mgr inż. Mirosław Behrendt (UG), dr Justyna Barzowska (UG), mgr Natalia Górecka (UG), mgr Natalia Majewska (UG), dr inż. Tadeusz Leśniewski (UG), dr hab. Sebastian Mahlik (UG), prof. UG, in collaboration with dr inż. Marcin Łapiński (PG) published a paper on a new method for determining the position of active levels of lanthanide ions (Ln) relative to conductivity bands. The technique can be applied to a broad class of optically active materials.
The paper appeared in the April 14, 2023, scientific journal Dalton Transactions issue. It has also been highlighted on the journal's cover, meaning it is free for six weeks.
- 'Luminescent materials containing optically active lanthanide (Ln) ions are being intensively studied for optoelectronic applications. In order to understand the effects responsible for the excitation energy transfer between the matrix and the activators and for other processes determining the optical properties of the materials mentioned above, the position of the Ln energy states relative to the conductivity and valence bands of the matrix must be taken into account. In this paper, we propose a new method for determining the position of the above Ln levels relative to the bands based on the synergistic use of photoconductivity and photoluminescence excitation spectra. We believe this method will be useful for a wide class of optically active materials,' - write the authors of the scientific paper.