Size-dependent luminescence of color centers in composite nanodiamonds

作者：Shershulin Vladimir A^*; Sedov Vadim S; Ermakova Anna; Jantzen Uwe; Rogers Lachlan; Huhlina Anastasia A; Teverovskaya Ekaterina G; Ralchenko Victor G; Jelezko Fedor; Vlasov Igor I

来源：Physica Status Solidi A-Applications and Materials Science, 2015, 212(11): 2600-2605.

DOI：10.1002/pssa.201532204

• chemical vapor deposition
• color centers
• diamond
• nanoparticles
• photoluminescence

Luminescence properties of nitrogen-vacancy (NV) and silicon-vacancy (SiV) centers were investigated for the series of O-terminated composite nanodiamonds consisting of a high-pressure-high-temperature(HPHT) diamondcore and a chemical-vapor-deposition (CVD) diamond outer layer of different thickness. It was found that emission of NV and SiV centers cease to "feel" the diamond surface at a distance of 12 and 4 nm, respectively, from it. This finding determines minimum sizes of O-terminated nanodiamonds in which stable single photon emitters could be formed based on NV and SiV centers. Suggested composite diamond nanostructure are optimal for design of two-color luminescent markers.

• 出版日期2015-11