Enhancement of photoluminescence from rare-earth ions in fluoride crystals by ion-implanted silver nanoparticles

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-12-20 DOI:10.1016/j.jlumin.2024.121044

V.L. Paperny , A.A. Chernykh , A.S. Ishchenko , S.V. Murzin , A.S. Myasnikova , E.A. Radzhabov , R. Yu Shendrik , E.F. Martynovich , V.P. Dresvyansky

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引用次数: 0

Abstract

The luminescent characteristics in the visible and near infrared spectral ranges of both pure MeF₂ fluoride crystals (Me = Ba, Ca and Sr) and those doped with Er³⁺ ions, which are implanted with high-energy (∼100 keV) silver ions are studied. It is found that in the former case, a thin surface layer of the irradiated crystals emit a composite band in the spectral range of 450–1000 nm (λ_exc = 405 nm), caused by the luminescence of the formed silver nanoparticles. In the latter case, only the luminescence bands of Er³⁺ ions are recorded, the intensity of which are enhanced significantly (for instance, up to near 4 times for CaF₂:Er³⁺ sample) compared to the virgin, i.e. non-irradiated, samples. This is experimental evidence in favor of the fact that the observed increase in the luminescence of Er³⁺ ions is due to non-radiative energy transfer to them from excited silver NPs, which form a layer about 100 nm thick in the irradiated crystal.

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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.