Dark defect charge dynamics in bulk chemical-vapor-deposition-grown diamonds probed via nitrogen vacancy centers

Abstract

Although chemical vapor deposition (CVD) is one of the preferred routes to synthetic diamond crystals, a full knowledge of the point defects produced during growth is still incomplete. Here we exploit the charge and spin properties of nitrogen-vacancy (NV) centers in type-1b CVD diamond to expose an optically and magnetically dark point defect, so far virtually unnoticed despite an abundance comparable to (if not greater than) that of substitutional nitrogen. Indirectly-detected photo-luminescence spectroscopy indicates a donor state 1.6 eV above the valence band, although the defect's microscopic structure and composition remain elusive. Our results may prove relevant to the growing set of applications that rely on CVD-grown single crystal diamond.

References in corpus (15)

• The nitrogen-vacancy colour centre in diamond
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Sensing electric fields using single diamond spins
• Photo induced ionization dynamics of the nitrogen vacancy defect in diamond investigated by single shot charge state detection
• Nanoscale magnetic imaging of a single electron spin under ambient conditions
• Entanglement Distillation between Solid-State Quantum Network Nodes
• Anisotropic interactions of a single spin and dark-spin spectroscopy in diamond
• Production of oriented nitrogen-vacancy color centers in synthetic diamond
• Imaging thermal conductivity with nanoscale resolution using a scanning spin probe
• Protecting a diamond quantum memory by charge state control
• Initialization and Readout of Nuclear Spins via negatively charged Silicon-Vacancy Center in Diamond
• Optical patterning of trapped charge in nitrogen-doped diamond
• On-Demand Generation of Neutral and Negatively-Charged Silicon-Vacancy Centers in Diamond
• Charge transfer effects, thermo- and photochromism in single crystal CVD synthetic diamond
• Towards a room-temperature spin quantum bus in diamond via optical spin injection, transport and detection

Cited by in corpus (8)

• Optical activation and detection of charge transport between individual color centers in room-temperature diamond
• Fast wide-field quantum sensor based on solid-state spins integrated with a SPAD array
• Probing metastable space-charge potentials in a wide bandgap semiconductor
• Room-temperature photo-chromism of silicon vacancy centers in CVD diamond
• Long-term spin state storage using ancilla charge memories
• Wavelength dependence of nitrogen-vacancy center charge cycling
• Quantum spin probe of single charge dynamics
• Probing charge dynamics in diamond with an individual color center