High-pressure Spectroscopy Laboratory

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The laboratory is equipped with a set of portable chambers with diamond anvils enabling the application of high pressure (up to 30GPa) to the tested materials. The laboratory enables the following measurements as a function of pressure: excitation spectra of luminescence, Raman spectra, photoluminescence spectra and luminescence kinetics. The ability to measure excitation spectra or luminescence kinetics both as a function of pressure and temperature (10 - 600 K) makes it a unique laboratory on the global scale. The equipment enables basic research of luminescent materials: crystalline, thin-film, semiconductor, polymer, as well as hetero- and nanostructures as a function of pressure. These analyzes help to explain the nature of radiative and non-radiative transitions and broaden the knowledge about the energy structure of the studied materials.

Examples of research articles:

Publications

1. Chemical Engineering Journal 490 (2024) 151596; Y. T. Tsai, T. Leśniewski, N. Majewska, M. Kamiński, J. Barzowska, E. P. Liu, W.T. Chen, S. Mahlik, M. H. Fang "Pressure/temperature-assisted crystallographic engineering–A strategy for developing the infrared phosphors" DOI: 10.1016/j.cej.2024.151596
2. Journal of the American Chemical Society 143 (2021) 19058–19066; V. Rajendran, M. H. Fang, W. T. Huang, N. Majewska, T. Lesniewski, S. Mahlik, G. Leniec, S. M. Kaczmarek, W. K. Pang, V. K. Peterson, K. M. Lu, H. Chang, R. S. Liu "Chromium Ion Pair Luminescence: A Strategy in Broadband Near-Infrared Light-Emitting Diode Design" DOI: 10.1021/jacs.1c08334
3. Chemistry of Materials 35 (2023) 4680–4690; N. Majewska, A. Muñoz, R.S. Liu, S. Mahlik "Influence of Chemical and Mechanical Pressure on the Luminescence Properties of Near-Infrared Phosphors" DOI: 10.1021/acs.chemmater.3c00203