Diamond p–i–n Diode with Nitrogen Containing Intrinsic Region for the Study of Nitrogen‐Vacancy Center Electroluminescence

• Published in: Physica status solidi. PSS-RRL. Rapid research letters 2020-11, Vol.14 (11), p.n/a
• Main Authors: Lobaev, Mikhail Aleksandrovich, Radishev, Dmitry Borisovich, Bogdanov, Sergey Aleksandrovich, Vikharev, Anatoly Leontievich, Gorbachev, Alexey Mikhailovich, Isaev, Vladimir Aleksandrovich, Kraev, Stanislav Alekseevich, Okhapkin, Andrey Igorevich, Arhipova, Ekaterina Aleksandrovna, Drozdov, Mikhail Nikolaevich, Shashkin, Vladimir Ivanovich
• Format: Article
• Language: English
• Subjects: Color centers; diamond deposition; diamond p–i–n diode; Diamonds; Electroluminescence; electroluminescence spectrum; Emission; Nitrogen; Photoluminescence; Photons; Room temperature; Substrates; Vacancies
• ISSN: 1862-6254; 1862-6270
• DOI: 10.1002/pssr.202000347

The results of a study of diamond p–i–n diode with a nitrogen‐doped intrinsic region on a substrate with the (001) orientation are presented. When the forward voltage is applied to the diode, a high current density of about 103 A cm−2 is obtained. Two narrow lines are detected in the electroluminescence spectrum of the p–i–n diode: one at a wavelength of 575 nm corresponding to the emission of the NV center (nitrogen‐vacancy color center) in a neutral charge state, and the second narrow line, which previously has not been observed in the electroluminescence spectra, at a wavelength of 533 nm. The line widths at room temperature are about 7 and 3 nm, respectively. By comparing the emission intensities of NV centers using the same optical registration system for electroluminescence and photoluminescence, the emission rate of NV centers during electroluminescence is estimated to be about 106 photon s−1, which allows to consider a diode of such design as a possible candidate to create single‐photon sources. Emission is found at a wavelength of 533 nm with line width of about 3 nm at room temperature in the electroluminescence spectrum of nitrogen color centers in a diamond p–i–n diode. In the electroluminescence of diamond, this line was not observed previously. Such narrow emission line opens up new possibilities for creating single photon sources.