Controlling the fluorescence properties of nitrogen vacancy centers in nanodiamonds.

摘要: Control over the formation and fluorescence properties of nitrogen vacancy (NV) centers in nanodiamonds (NDs) is an important factor for their use medical sensor applications. However, reports providing a deep understanding potential factors influencing these are rare focus only on few factors. The current contribution targets this issue we report comprehensive study NVs as function electron irradiation fluence surface termination. Here show that process parameters such defect center interactions, particular, different defects radiation induced lattice defects, well functionalities have strong influence intensity, lifetime charge state ratio NV centers. By employing time-correlated single photon counting approach also established method fast macroscopic monitoring ND samples. We found may be controlled or even tuned depending upon treatment, annealing,