Duo Emission of CVD Nanodiamonds Doped by SiV and GeV Color Centers: Effects of Growth Conditions

Kirill V Bogdanov; Mikhail A Baranov; Nikolay A Feoktistov; Ilya E Kaliya; Valery G Golubev; Sergey A Grudinkin; Alexander V Baranov

doi:10.3390/ma15103589

Duo Emission of CVD Nanodiamonds Doped by SiV and GeV Color Centers: Effects of Growth Conditions

Materials (Basel). 2022 May 18;15(10):3589. doi: 10.3390/ma15103589.

Authors

Kirill V Bogdanov¹, Mikhail A Baranov¹, Nikolay A Feoktistov², Ilya E Kaliya¹, Valery G Golubev², Sergey A Grudinkin^{1

2}, Alexander V Baranov¹

Affiliations

¹ Center of Information and Optical Technologies, ITMO University, Kronverksky Pr. 49, bldg. A, 197101 St. Petersburg, Russia.
² Ioffe Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia.

Abstract

The investigation of the hot filament chemical vapor deposition nanodiamonds with simultaneously embedded luminescent GeV^- and SiV^- color centers from solid sources showed that both the absolute and relative intensities of their zero-phonon lines (at 602 and 738 nm) depend on nanodiamond growth conditions (a methane concentration in the CH₄/H₂ gas mixture, growth temperature, and time). It is shown that a controlled choice of parameters of hot filament chemical vapor deposition synthesis makes it possible to select the optimal synthesis conditions for tailoring bicolor fluorescence nanodiamond labels for imaging biological systems.

Keywords: Raman spectroscopy; chemical vapor deposition; color centers; nanodiamonds; photoluminescence.

Grants and funding

21-12-00264/Russian Science Foundation