Structural and optical properties of micro-diamonds with SiV− color centers

Fabio Isa; Matthew Joliffe; Brendan Wouterlood; Naomi He Ho; Thomas Volz; Avi Bendavid; Lachlan J. Rogers

doi:10.1088/1361-648X/acecee

Structural and optical properties of micro-diamonds with SiV⁻ color centers

Fabio Isa, Matthew Joliffe, Brendan Wouterlood, Naomi He Ho, Thomas Volz, Avi Bendavid, Lachlan J. Rogers^*

^*Corresponding author for this work

ARC Centre of Excellence for Engineered Quantum Systems (EQuS)

Research output: Contribution to journal › Article › peer-review

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Abstract

Isolated, micro-metre sized diamonds are grown by micro-wave plasma chemical vapour deposition technique on Si(001) substrates. Each diamond is uniquely identified by markers milled in the Si substrate by Ga⁺ focused ion beam. The morphology and micro-grain structure analysis, indicates that the diamonds are icosahedral or bi-crystals. Icosahedral diamonds have higher (up to σ_h = 2.3 GPa), and wider distribution ( Δσ_h = 4.47 GPa) of hydrostatic stress built up at the micro-crystal grain boundaries, compared to the other crystals. The number and spectral shape of SiV⁻ colour centres incorporated in the micro-diamonds (MDs) is analysed, and estimated by means of temperature dependent photoluminescence measurements, and Monte Carlo simulations. The Monte Carlo simulations indicates that the number of SiV⁻ colour centres is a few thousand per MD.

Original language	English
Article number	505302
Pages (from-to)	1-10
Number of pages	10
Journal	Journal of Physics Condensed Matter
Volume	35
Issue number	50
DOIs	https://doi.org/10.1088/1361-648X/acecee
Publication status	Published - 18 Dec 2023

Bibliographical note

© 2023 The Author(s). Published by IOP Publishing Ltd. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

colour centre
micro-diamonds
optical
silicon-vacancy
structure

Access to Document

10.1088/1361-648X/aceceeLicence: CC BY

Publisher version (open access)Final published version, 2.22 MBLicence: CC BY

Cite this

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title = "Structural and optical properties of micro-diamonds with SiV− color centers",

abstract = "Isolated, micro-metre sized diamonds are grown by micro-wave plasma chemical vapour deposition technique on Si(001) substrates. Each diamond is uniquely identified by markers milled in the Si substrate by Ga+ focused ion beam. The morphology and micro-grain structure analysis, indicates that the diamonds are icosahedral or bi-crystals. Icosahedral diamonds have higher (up to σh = 2.3 GPa), and wider distribution ( Δσh = 4.47 GPa) of hydrostatic stress built up at the micro-crystal grain boundaries, compared to the other crystals. The number and spectral shape of SiV− colour centres incorporated in the micro-diamonds (MDs) is analysed, and estimated by means of temperature dependent photoluminescence measurements, and Monte Carlo simulations. The Monte Carlo simulations indicates that the number of SiV− colour centres is a few thousand per MD.",

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AU - Isa, Fabio

AU - Joliffe, Matthew

AU - Wouterlood, Brendan

AU - He Ho, Naomi

AU - Volz, Thomas

AU - Bendavid, Avi

AU - Rogers, Lachlan J.

N1 - © 2023 The Author(s). Published by IOP Publishing Ltd. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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N2 - Isolated, micro-metre sized diamonds are grown by micro-wave plasma chemical vapour deposition technique on Si(001) substrates. Each diamond is uniquely identified by markers milled in the Si substrate by Ga+ focused ion beam. The morphology and micro-grain structure analysis, indicates that the diamonds are icosahedral or bi-crystals. Icosahedral diamonds have higher (up to σh = 2.3 GPa), and wider distribution ( Δσh = 4.47 GPa) of hydrostatic stress built up at the micro-crystal grain boundaries, compared to the other crystals. The number and spectral shape of SiV− colour centres incorporated in the micro-diamonds (MDs) is analysed, and estimated by means of temperature dependent photoluminescence measurements, and Monte Carlo simulations. The Monte Carlo simulations indicates that the number of SiV− colour centres is a few thousand per MD.

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