Specific temperature dependence of the spectroscopic properties of Cr2+ ions in Cr2+, Fe2+ co-doped Zn0.7Mn0.3Se crystal

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-12-14 DOI:10.1016/j.jlumin.2024.121027

M.E. Doroshenko , K.A. Pierpoint , H. Jelínková , A. Říha

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Abstract

The paper presents research on the temperature dependence of the spectroscopic properties of chromium ions in Cr²⁺-only doped and Cr²⁺,Fe²⁺ co-doped Zn_0.7Mn_0.3Se solid solution crystals within the temperature range from 77 to 380 K. It is shown that the absorption and luminescence spectra maxima of Cr²⁺ ions in the co-doped sample shift almost linearly towards higher energies compared to Cr²⁺-only doped sample across the entire investigated temperature range. The lifetime of Cr²⁺ ions in the co-doped sample remains practically independent of temperature up to 200 K, while in the Cr²⁺-only doped Zn_0.7Mn_0.3Se crystal it remains temperature-independent up to 250 K. Differences between the temperature dependences of Zn_0.7Mn_0.3Se:Cr²⁺ and Zn_0.7Mn_0.3Se:Cr²⁺,Fe²⁺ samples can be attributed to the influence of Fe²⁺ ions presence, which affect the local vibrations at the position of Cr²⁺ ion.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.