Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Investigation of Nitrogen and Vacancy Defects in Synthetic Diamond Plates by Positron Annihilation Spectroscopy

Version 1 : Received: 18 November 2022 / Approved: 21 November 2022 / Online: 21 November 2022 (05:56:27 CET)

A peer-reviewed article of this Preprint also exists.

Eseev, M.; Kuziv, I.; Kostin, A.; Meshkov, I.; Sidorin, A.; Orlov, O. Investigation of Nitrogen and Vacancy Defects in Synthetic Diamond Plates by Positron Annihilation Spectroscopy. Materials 2023, 16, 203. Eseev, M.; Kuziv, I.; Kostin, A.; Meshkov, I.; Sidorin, A.; Orlov, O. Investigation of Nitrogen and Vacancy Defects in Synthetic Diamond Plates by Positron Annihilation Spectroscopy. Materials 2023, 16, 203.

Abstract

Nowadays, diamonds are widely used in science and technology. However, the properties of diamonds due to their defects are not fully understood. In addition to optical methods, positron annihilation spectroscopy (PAS) can be successfully used to study defects in diamonds. Positrons are capable of detecting vacancies, small and large clusters of vacancies induced by irradiation, by providing information about their size, concentration, and chemical environment. By mapping in the infrared (IR) range, it is possible to consider the admixture composition of the main inclusions of the whole plate. The article presents the results of the study of defects in synthetic diamond plates, one of which was irradiated by electrons. Presents data about the distribution of the defect concentration obtained by Infrared spectroscopy. PAS with a monochromatic positron beam can be used as a non-destructive technique of detecting defects (vacancy) distribution over the depth of diamond plates.

Keywords

NV-centers; Positron annihilation spectroscopy; IR-spectroscopy; Defects; Vacancy; Diamonds; Unbreakable control

Subject

Chemistry and Materials Science, Nanotechnology

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