Distribution of shallow NV centers in diamond revealed by photoluminescence spectroscopy and nanomachining

Jadidi, Majid Fazeli; Özer, H. Özgür; Goel, Saurav; Kilpatrick, Jason I.; McEvoy, Niall; McCloskey, David; Donegan, John F.; Cross, Graham L. W.

doi:10.1016/j.carbon.2020.04.086

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…Therefore, a high radiation dose promotes the formation of NV centers, but can compromise the stability of the NV − by favoring the neutral state. The direct implantation of nitrogen followed by annealing also results in a large, often predominant fraction of NV 0 [66,67,72] (Figure 3a-d). Additionally, the NV − centers obtained via this method are characterized by charge conversion to NV 0 and reduced photostability [73,74].…”

Section: Charge Stabilization By Doping and Surface Terminationmentioning

confidence: 99%

Advances in Stabilization and Enrichment of Shallow Nitrogen-Vacancy Centers in Diamond for Biosensing and Spin-Polarization Transfer

Gorrini

Bifone

2023

Biosensors

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Negatively charged nitrogen-vacancy (NV−) centers in diamond have unique magneto-optical properties, such as high fluorescence, single-photon generation, millisecond-long coherence times, and the ability to initialize and read the spin state using purely optical means. This makes NV− centers a powerful sensing tool for a range of applications, including magnetometry, electrometry, and thermometry. Biocompatible NV-rich nanodiamonds find application in cellular microscopy, nanoscopy, and in vivo imaging. NV− centers can also detect electron spins, paramagnetic agents, and nuclear spins. Techniques have been developed to hyperpolarize 14N, 15N, and 13C nuclear spins, which could open up new perspectives in NMR and MRI. However, defects on the diamond surface, such as hydrogen, vacancies, and trapping states, can reduce the stability of NV− in favor of the neutral form (NV0), which lacks the same properties. Laser irradiation can also lead to charge-state switching and a reduction in the number of NV− centers. Efforts have been made to improve stability through diamond substrate doping, proper annealing and surface termination, laser irradiation, and electric or electrochemical tuning of the surface potential. This article discusses advances in the stabilization and enrichment of shallow NV− ensembles, describing strategies for improving the quality of diamond devices for sensing and spin-polarization transfer applications. Selected applications in the field of biosensing are discussed in more depth.

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Section: Charge Stabilization By Doping and Surface Terminationmentioning

confidence: 99%

Advances in Stabilization and Enrichment of Shallow Nitrogen-Vacancy Centers in Diamond for Biosensing and Spin-Polarization Transfer

Gorrini

Bifone

2023

Biosensors

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“…[22,23] Integrated optics based on diamonds are being developed rapidly with the help of NV color centers and will become increasingly widely used and investigated in the future. [24] In this study, N-H-O codoped diamonds were synthesized through the HPHT method in a C-H-N-O doping system. The regular changes in diamond growth conditions and crystal surface morphology with the change in the N-H-O content of the synthesis system were investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of the codoping of N–H–O on the growth characteristics and defects of diamonds under high temperature and high pressure

Cai¹,

Li²,

Chen³

et al. 2022

Chinese Phys. B

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In this work, diamond crystals were synthesized with different doping proportions of N-H-O at 5.5-7.1GPa and 1370-1450℃. With the increase of N-H-O doping ratio, the crystal growth rate decreases, a more serve temperature and pressure condition are required for diamond nucleation process and the crystalline process for diamond are affected. [111] becomes dominant plane of diamonds, and the surface morphology is blocked, more growth texture, stacking fault and etch pit were appeared. Diamond crystals own a two-dimensional growth habit. Increasing the doping concentration also leading more nitrogen enter into diamond crystals, which is confirmed by FTIR. However, the quality of the crystal gradually deteriorates which could be ascertained by the red shift of Raman peak position and the widening of Raman full width at half maximum. With the increase of doping ratio, the photoluminescence property of diamond crystal also drastically changed. The intensity of NV center of diamond crystal changes, and several Ni-related defect center such as NE1 center and NE3 center appear. Synthesis of diamond in N-H-O bearing fluid provides important information for a deeper understanding of the growth characteristics of diamond in complex system and the formation mechanism of natural diamond as nature diamonds are almost nitrogen rich and full of various defect centers. Meanwhile, this work proves that the type of defect center in diamond crystal could be regulated by controlling the N-H-O impurities content in the synthesis system.

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Applications of Raman, IR, and CL Spectroscopy

Yoshikawa

2023

Advanced Optical Spectroscopy Techniques for Semiconductors

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Distribution of shallow NV centers in diamond revealed by photoluminescence spectroscopy and nanomachining

Cited by 7 publications

References 46 publications

Advances in Stabilization and Enrichment of Shallow Nitrogen-Vacancy Centers in Diamond for Biosensing and Spin-Polarization Transfer

Advances in Stabilization and Enrichment of Shallow Nitrogen-Vacancy Centers in Diamond for Biosensing and Spin-Polarization Transfer

Effect of the codoping of N–H–O on the growth characteristics and defects of diamonds under high temperature and high pressure

Applications of Raman, IR, and CL Spectroscopy

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