Systematic study of defect-related quenching of NV luminescence in diamond with time-correlated single-photon counting spectroscopy

Abstract

We report on the systematic characterization of photoluminescence (PL) lifetimes in NV − and NV 0 centers in 2-MeV H + -implanted type Ib diamond samples by means of a time-correlated single-photon counting (TCSPC) microscopy technique. A dipole-dipole resonant energy transfer model was applied to interpret the experimental results, allowing a quantitative correlation of the concentration of both native (single substitutional nitrogen atoms) and ion-induced (isolated vacancies) PL-quenching defects with the measured PL lifetimes. The TCSPC measurements were carried out in both frontal (i.e., laser beam probing the main sample surface along the same normal direction of the previously implanted ions) and lateral (i.e., laser beam probing the lateral sample surface orthogonally with respect to the same ion implantation direction) geometries. In particular, the latter geometry allowed a direct probing of the centers lifetime along the strongly nonuniform damage profiles of MeV ions in the crystal. The extrapolation of empirical quasiexponential decay parameters allowed the systematic estimation of the mean quantum efficiency of the centers as a function of intrinsic and ion-induced defect concentration, which is of direct relevance for the current studies on the use of diamond color centers for photonic applications.

NV−–N+ pair centre in 1b diamond

“…With the higher nitrogen concentration of 212 pm NV 0 does not occur and all centres acquire an electron. The behavior is almost independent of the NV − concentration, an aspect well illustrated by figure 4 of [42]. Their figure shows spectra for two nitrogen concentrations each with widely varying NV − concentrations.…”

“…For example it has been shown earlier in figure 20(b) that the rate for the 212 ppm N 0 sample is faster than for the 115 ppm N 0 sample. Large variation in rates have been reported in the literature and for 1b diamonds the shorter lifetimes correlate with the higher nitrogen concentrations [15,[42][43][44][45]. The best illustration is in a recent paper by Bogdanov et al [46] where they have shown that for micro-diamonds prepared by HPHT there is a systematic shortening of the lifetime with nitrogen concentration Figure 22.…”

Color center fluorescence and spin manipulation in single crystal, pyramidal diamond tips

“…Previous works report that lifetime changes of color centers evidence interaction with various defects [12][13][14] as well as the photonic environment. 15 (9) ns], potentially due to a decrease in the effective refractive index close to the nanoscale apex.…”

Heat Exchange Evaluation at Thermo-Adhezion Method of Extraction of Diamond Raw from Kimberlite Ore

“…As it is known, one of the unique properties of diamond is a very high thermal conductivity among all solids, including all metals, natural minerals and rocks (Monticone et al, 2013;Dement'ev, Voiloshnikov, & Kononko, 2015;Makarskii, 2012;Fedorov, Chepurov, & Dereppe, 2002;Chanturiia et al, 2012). An analysis of thermal physical properties shows that, in comparison with diamond grains, kimberlite, rocks and related minerals from deposits are characterized by a much lower level of thermal conductivity -by ~ 2-3 orders of magnitude.…”