X-ray Exited Optical Luminescence of Eu in Diamond Crystals Synthesized at High-pressure High-temperature

Vasily Timofeevich Lebedev; Fedor Mikhailovich Shakhov; Alexandr Yakovlevich Vul; Arcady Anatolievich Zakharov; Vladimir Georgievich Zinoviev; Vera Alexeevna Orlova; Eduard Vladimirovich Fomin

doi:10.20944/preprints202212.0085.v1

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preprints.org > chemistry and materials science > nanotechnology > doi: 10.20944/preprints202212.0085.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

X-ray Exited Optical Luminescence of Eu in Diamond Crystals Synthesized at High-pressure High-temperature

Vasily Timofeevich Lebedev

^* ,

Fedor Mikhailovich Shakhov

Alexandr Yakovlevich Vul

Arcady Anatolievich Zakharov

Vladimir Georgievich Zinoviev

Vera Alexeevna Orlova

Eduard Vladimirovich Fomin

Version 1 : Received: 29 November 2022 / Approved: 6 December 2022 / Online: 6 December 2022 (01:35:19 CET)

A peer-reviewed article of this Preprint also exists.

Lebedev, V.T.; Shakhov, F.M.; Vul, A.Y.; Zakharov, A.A.; Zinoviev, V.G.; Orlova, V.A.; Fomin, E.V. X-ray Excited Optical Luminescence of Eu in Diamond Crystals Synthesized at High Pressure High Temperature. Materials 2023, 16, 830. Lebedev, V.T.; Shakhov, F.M.; Vul, A.Y.; Zakharov, A.A.; Zinoviev, V.G.; Orlova, V.A.; Fomin, E.V. X-ray Excited Optical Luminescence of Eu in Diamond Crystals Synthesized at High Pressure High Temperature. Materials 2023, 16, 830.

Abstract

Diamond powders with inclusions of europium atoms were synthesized at high pressure (7.7 GPa) and temperature (1800oC) from a mixture of pentaerythritol, C(CH2OH)4, and pyrolyzate of diphthalocyanine (C64H32N16Eu) served as a special precursor. In prepared diamonds by X-ray fluorescence spectroscopy, we have found the concentration of Eu atoms of 51±5 ppm that is by two orders of magnitude greater than that in known natural and synthetic diamonds. X-ray diffraction, SEM, X-ray exited optical luminescence, Raman and IR spectroscopy have confirmed the formation of diamond monocrystals of high quality with em-bedded Eu atoms and a nitrogen content of ~500 ppm. Numerical simulation has allowed us de-termine the energy cost of 5.8 eV needed for the incorporation of a single Eu atom with adjacent vacancy into growing diamond crystal (528 carbons).

Keywords

diamond; synthesis; diphthalocyanine; pyrolyzate; lanthanide; X-ray; luminescence

Subject

Chemistry and Materials Science, Nanotechnology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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