Electrical stimulation of single-photon emission from nitrogen-vacancy centers in diamond with sub-superficial graphitic electrodes

Abstract

Focused MeV ion beams with micrometric resolution are suitable tools for the direct writing of conductive graphitic channels buried in an insulating diamond bulk. Their effectiveness has been shown for the fabrication of multi-electrode ionizing radiation detectors and cellular biosensors. In this work we investigate such fabrication method for the electrical excitation of color centers in diamond. Differently from optically-stimulated light emission from color centers in diamond, electroluminescence (EL) requires a high current flowing in the diamond subgap states between the electrodes. With this purpose, buried graphitic electrode pairs with a spacing of 10 $\mu$m were fabricated in the bulk of a single-crystal diamond sample using a 6 MeV C microbeam. The electrical characterization of the structure showed a significant current above an effective voltage threshold of 150V, which was interpreted according to the theory of Space Charge Limited Current. The EL imaging allowed to identify the electroluminescent regions and the residual vacancy distribution associated with the fabrication technique. Measurements evidenced bright electroluminescent emission from native neutrally-charged nitrogen-vacancy centers ($N{V}^0$); the acquired spectra highlighted the absence of EL associated with radiation damage.

This article has been withdrawn due to the inclusion of additional upgrades and modifications, which significantly improve the paper. A new submission will be performed at a later stage

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Cited by in corpus (10)

• Microscopic imaging of elastic deformation in diamond via in-situ stress tensor sensors
• Absolute calibration of an EMCCD camera by quantum correlation linking photon counting to analog regime
• Electrical control of deep NV centers in diamond by means of sub-superficial graphitic micro-electrodes
• Dynamics of single-photon emission from electrically pumped color centers
• Mapping the local spatial charge in defective diamond by means of NV sensors - A "self-diagnostic" concept
• Photo-physical properties of He-related color centers in diamond
• Direct experimental observation of nonclassicality in ensembles of single photon emitters
• Superinjection in diamond p-i-n diodes: bright single-photon electroluminescence of color centers beyond the doping limit
• Feasibility study towards comparison of the g^(2)(0) measurement in the visible range
• Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source