Abstract:
Electroluminescence of germanium-vacancy color centers (GeV centers) in a diamond $p$–$i$–$n$ diode has been demonstrated for the first time. To create color centers, a layer implanted with germanium ions was created in the inner region of the diode. A narrow line at a wavelength of 602.9 nm was detected in the emission spectrum, corresponding to the emission of a germanium-vacancy color center in a negative charge state. Electroluminescence spectra of germanium-vacancy and silicon-vacancy color centers were compared.
Keywords:CVD diamond, $p$–$i$–$n$ diode, color centers, electroluminescence.