Optical Study of Some Interstitial-Related Centres in CVD Diamond

Iakoubovskii, Konstantin; Adriaenssens, Guy

doi:10.1002/1521-396x(200009)181:1<59::aid-pssa59>3.0.co;2-d

Cited by 18 publications

(13 citation statements)

References 11 publications

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“…9a). This is consistent with the results of Iakoubovskii and Adriaenssens (2000) and Iakoubovskii et al (2001) who found that most of the 3H absorption disappears upon annealing at well below 400 °C.…”

Section: Changes Upon Thermal Annealingsupporting

confidence: 93%

Radio-colouration of diamond: a spectroscopic study

Nasdala

Grambole

Wildner

et al. 2012

Contrib Mineral Petrol

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Section: Changes Upon Thermal Annealingsupporting

confidence: 93%

Radio-colouration of diamond: a spectroscopic study

Nasdala

Grambole

Wildner

et al. 2012

Contrib Mineral Petrol

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“…In this letter, we report the selective creation of single color centers in diamond emitting at = 470.5 nm, which is known as TR12 line. [16][17][18] It was proposed that this center contains an interstitial carbon atom in a hexagonal site. 19 Although TR12 line has been observed in the luminescent spectrum of diamond decades ago, it was not clear whether luminescence quantum yield is high enough to detect single centers.…”

mentioning

confidence: 99%

“…21 In contrast to NV, the TR12 centers are less stable, annealing at temperatures above 800°C destroys major part of the 470 nm absorption. 16,22 Figure 1 shows a confocal microscopy fluorescence image where the implanted pattern can be clearly seen. The ion dose was 2000 ions per spot and each spot in the figure consists of several color centers.…”

mentioning

confidence: 99%

“…However, there are indication that the structure of the TR12 defect is a complex consisting of interstitials and vacancies. 16 Therefore, the formation of color center is a multistep process where losses of interstitials via recombination with vacancies seriously limit the yield. Further studies for the improvement of the yield of these centers will include optimization of both implantation and annealing procedures.…”

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confidence: 99%

“…The zero phonon line at 470.5 nm ͑2.638 eV͒ and its characteristic squared shape vibronic replica unambiguously show that these defects belong to the TR12 system. 16 Debye-Waller factor characterizing intensity of zero phonon line is moderate ͑0.1͒, placed between Ni-related centers ͑0.5͒ and nitrogen-vacancy color centers ͑0.04͒.…”

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confidence: 99%

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Engineering single photon emitters by ion implantation in diamond

Naydenov¹,

Kolesov²,

Batalov³

et al. 2009

Applied Physics Letters

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Diamond provides unique technological platform for quantum technologies including quantum computing and communication. Controlled fabrication of optically active defects is a key element for such quantum toolkit. Here we report the production of single color centers emitting in the blue spectral region by high energy implantation of carbon ions. We demonstrate that single implanted defects show sub-poissonian statistics of the emitted photons and can be explored as single photon source in quantum cryptography. Strong zero phonon line at 470.5 nm allows unambiguous identification of this defect as interstitial-related TR12 color center.

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Defects in diamond

Dannefaer

2007

Phys. Status Solidi (c)

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Diamond is one of the remarkable forms of carbon. For example, it can be found in nature with an impurity content of less than 1 ppm, or it can be synthesized either as a single-crystal or as a polycrystalline deposit on various surfaces. Furthermore, boron doping makes it a p-type semiconductor, and even superconducting. Diamond is also one of the few materials where optical absorption (OA) yields relevant information on defects, including the omnipresent nitrogen impurity. This is so because in diamond many defects have sharp zero-phonon lines. Irradiation produces vacancies and interstitials both of which have been identified by OA and electron paramagnetic resonance, and also by positron annihilation (vacancy only). Irradiation-produced defects are remarkable stable, with the monovacancy becoming mobile at 700 o C, and the divacancy surviving to at least 1000 1 Diamond physics Diamonds have always been of interest, but in the last 20 years the scientific/technical interest increased significantly when it was learned that chemical vapour deposition of diamond was possible. The hardness of diamond has a technological advantage, and when it was learned how to make single crystalline diamond, scientific advances became possible. This is so because natural single crystalline diamond contains various impurities, and can have significant internal stress due to varying growth conditions in the earth. Isotope doping also became possible which causes resonance lines to shift.There are several reviews conveying various aspects related to diamond [1-6] of which [1] contains a general introduction, albeit some of the physical assignments with absorption lines has since then changed. The most comprehensive and recent data base can be found in the contribution by Zaitsev in [4]. In [6] unresolved issues are discussed. Some of the more prominent absorption lines have been given "names", which are widely used, but there is no logic to the names.Diamonds are classified according to the omnipresent nitrogen impurity found in natural diamond. The nitrogen content can vary from less than 1ppm to an extreme of 1%, and in table 1 the various types are listed with comments to their occurrences. The most common gem-quality is type Ia A/B, where A means a cluster of two nitrogen atoms and B is a cluster of four nitrogen atoms plus a vacancy. Most often A and B clusters coexist in natural diamond, hence A/B. The optical absorption from these clusters is in the far infrared, and the diamond is clear in the visible range. Type Ib contains substitutional nitro-

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Optical Study of Some Interstitial-Related Centres in CVD Diamond

Cited by 18 publications

References 11 publications

Radio-colouration of diamond: a spectroscopic study

Radio-colouration of diamond: a spectroscopic study

Engineering single photon emitters by ion implantation in diamond

Defects in diamond

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