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Article Dans Une Revue Diamond and Related Materials Année : 2016

Photoluminescence of nanodiamonds influenced by charge transfer from silicon and metal substrates

Résumé

Photoluminescence of 5 nm detonation nanodiamonds (DNDs) is studied as a function of their surface treatment (hydrogenation/oxidation) and underlying substrate materials (silicon, gold, platinum, and nickel). The substrates affect DND photoluminescence emission spectrum and lifetime in the spectral range of 600-800 nm. The dependence is different for hydrogenated and oxidized DNDs. We attribute these effects to different electrostatic charging of DNDs on the substrates with different work functions (4.4 to 5.5 eV). We discuss the data based on naturally present NV centers, their phonon sideband, and surface-related non-radiative transitions.
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Dates et versions

hal-01869636 , version 1 (29-06-2023)

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Stepan Stehlik, Lukas Ondic, Amanuel Berhane, Igor Aharonovich, Hugues Girard, et al.. Photoluminescence of nanodiamonds influenced by charge transfer from silicon and metal substrates. Diamond and Related Materials, 2016, 63, pp.91 - 96. ⟨10.1016/j.diamond.2015.08.009⟩. ⟨hal-01869636⟩
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