Nanoscale Vacancy-Mediated Aggregation, Dissociation, and Splitting of Nitrogen Centers in Natural Diamond Excited by Visible-Range Femtosecond Laser Pulses
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Nanoscale Vacancy-Mediated Aggregation, Dissociation, and Splitting of Nitrogen Centers in Natural Diamond Excited by Visible-Range Femtosecond Laser Pulses
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| Автор |
Kudryashov, S.
Kriulina, G. Danilov, P. Kuzmin, E. Kirichenko, A. Rodionov, N. Khmelnitskii, R. Chen, J. Rimskaya, E. Shur, V. |
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| Тематика |
FEMTOSECOND LASER PULSES
HIGHLY AND LOWLY AGGREGATED NITROGEN CENTERS INTERSTITIAL VACANCY PHOTOGENERATION NATURAL IAA+B DIAMOND PHOTODISSOCIATION VACANCY ATTACHMENT VACANCY-DRIVEN SPLITTING |
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| Описание |
Natural IaA+B diamonds were exposed in their bulk by multiple 0.3 ps, 515 nm laser pulses focused by a 0.25 NA micro-objective, producing in the prefocal region (depth of 20–50 μm) a bulk array of photoluminescent nanostructured microtracks at variable laser exposures and pulse energies. These micromarks were characterized at room (25°) and liquid nitrogen cooling (−120 °C) temperatures through stationary 3D scanning confocal photoluminescence (PL) microspectroscopy at 405 and 532 nm excitation wavelengths. The acquired PL spectra exhibit a linearly increasing pulse-energy-dependent yield in the range of 575 to 750 nm (NV0, NV− centers) at the expense of the simultaneous reductions in the blue–green (450–570 nm; N3a, H4, and H3 centers) and near-IR (741 nm; V0 center) PL yield. A detailed analysis indicates a low-energy rise in PL intensity for B2-related N3a, H4, and H3 centers, while at higher, above-threshold pulse energies it decreases for the H4, H3, and N3a centers, converting into NV centers, with the laser exposure effect demonstrating the same trend. The intrinsic and (especially) photo-generated vacancies were considered to drive their attachment as separate species to nitrogen centers at lower vacancy concentrations, while at high vacancy concentrations the concerted splitting of highly aggregated nitrogen centers by the surrounding vacancies could take place in favor of resulting NV centers. © 2023 by the authors.
Russian Science Foundation, RSF: 21-79-30063 The study was funded by a grant from the Russian Science Foundation (project No. 21-79-30063). |
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| Дата |
2024-04-05T16:36:30Z
2024-04-05T16:36:30Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Kudryashov, S, Kriulina, G, Danilov, P, Kuzmin, E, Kirichenko, A, Rodionov, N, Khmelnitskii, R, Chen, J, Rimskaya, E & Shur, V 2023, 'Nanoscale Vacancy-Mediated Aggregation, Dissociation, and Splitting of Nitrogen Centers in Natural Diamond Excited by Visible-Range Femtosecond Laser Pulses', Nanomaterials, Том. 13, № 2, 258. https://doi.org/10.3390/nano13020258
Kudryashov, S., Kriulina, G., Danilov, P., Kuzmin, E., Kirichenko, A., Rodionov, N., Khmelnitskii, R., Chen, J., Rimskaya, E., & Shur, V. (2023). Nanoscale Vacancy-Mediated Aggregation, Dissociation, and Splitting of Nitrogen Centers in Natural Diamond Excited by Visible-Range Femtosecond Laser Pulses. Nanomaterials, 13(2), [258]. https://doi.org/10.3390/nano13020258 2079-4991 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146746417&doi=10.3390%2fnano13020258&partnerID=40&md5=cbe008575338351e4d4cdba933c133cd https://www.mdpi.com/2079-4991/13/2/258/pdf?version=1673831110 http://elar.urfu.ru/handle/10995/130959 10.3390/nano13020258 85146746417 000916376800001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//21-79-30063
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Nanomaterials
Nanomaterials |
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