Micro-photoluminescence spectroscopy of detonation nanodiamonds containing germanium-vacancy centres.

ABSTRACT: A germanium-vacancy (GeV) centre in nanodiamond is a promising candidate for bright single-photon emitters, fluorescence labelling and quantum sensing due to its narrow zero-phonon line (ZPL) and large Debye-Waller factor. Recently, the GeV centre-containing nanodiamond (GeV-ND) was fabricated by a detonation process, which provides a scalable method capable of producing large quantities of ND particles. However, the optical properties of the GeV-ND at the single-particle level have not been well studied. In this study, we conducted spatially resolved photoluminescence (PL) mapping on sparsely distributed GeV-ND particles to examine luminescence characteristics across individual particles. The GeV-ND exhibited a narrow ZPL accompanied with a broad emission band. By comparing with well-char

SUBMITTER: Saito Y 

PROVIDER: S-EPMC12550598 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature