Scientific Results

Robust luminescence of the silicon-vacancy center in diamond at high temperatures

Year: 2015

Authors: Lagomarsino S., Gorelli F., Santoro M., Fabbri N., Hajeb A., Sciortino S., Palla L., Czelusniak C., Massi M., Taccetti F., Giuntini L., Gelli N., Fedyanin D. Y., Cataliotti F. S., Toninelli C., Agio M.

Autors Affiliation: Department of Physics and Astrophysics, University of Florence, Sesto Fiorentino, 50019, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Sesto Fiorentino, 50019, Italy; National Institute of Optics (INO-CNR), Sesto Fiorentino, 50019, Italy; European Laboratory for Nonlinear Spectroscopy (LENS), Sesto Fiorentino, 50019, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Pisa, 56127, Italy; Department of Physics, University of Pisa, Pisa, 56127, Italy; Laboratory of Nanooptics and Plasmonics, Moscow Institute of Physics and Technology, Dolgoprudny, 141700, Russian Federation; Center for Quantum Science and Technology in Arcetri (QSTAR), Florence, 50125, Italy; Laboratory of Nano-Optics, University of Siegen, Siegen, 57072, Germany

Abstract: We performed high-temperature luminescence studies of silicon-vacancy color centers obtained by ion implantation in single crystal diamond. We observed reduction of the integrated fluorescence upon increasing temperature, ascribable to a transition channel with an activation energy of 180 meV that populates a shelving state. Nonetheless, the signal decreased only 50% and 75% with respect to room temperature at 500 K and 700 K, respectively. In addition, the color center is found highly photostable at temperatures exceeding 800 K. The luminescence of this color center is thus extremely robust even at large temperatures and it holds promise for novel diamond-based light-emitting devices.

Journal/Review: AIP ADVANCES

Volume: 5      Pages from: 127117-1  to: 127117-6

More Information: The authors would like to thank K. De Hanstetters, S. Orlanducci and Ch. Degen for helpful conversations and for providing diamond samples, L. Ulivi for the use of the annealing chamber.
KeyWords: Activation energy; Color; Color centers; Diamonds; Ion implantation; Light emission; Luminescence; Single crystals, High temperature; Increasing temperatures; Light emitting devices; Luminescence studies; Photostable; Silicon vacancies; Single crystal diamond; Silicon wafers
DOI: 10.1063/1.4938256

Citations: 11
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English