Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Zonal and Sectorial Distribution of Impurities in HPHT Diamonds with NV Centers. / Клепиков, Игорь Вячеславович; Васильев, Евгений; Винс, Виктор; Липатов, Евгений; Александр, Колядин; Лебедев, Вячеслав.
в: Bulletin of the Lebedev Physics Institute, Том 52, № suppl 3, 01.08.2025, стр. S313–S318.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Zonal and Sectorial Distribution of Impurities in HPHT Diamonds with NV Centers
AU - Клепиков, Игорь Вячеславович
AU - Васильев, Евгений
AU - Винс, Виктор
AU - Липатов, Евгений
AU - Александр, Колядин
AU - Лебедев, Вячеслав
PY - 2025/8/1
Y1 - 2025/8/1
N2 - Abstract: A detailed analysis of spectroscopic features and of the zonal and sectorial internal structure of a multisectorial HPHT diamond sample grown in the Fe–Ni–C system is presented. The sample was irradiated by electrons with energy of 3 MeV and a dose of 1.5 × 1018 electron cm–2 and then annealed in vacuum at 1200°C to obtain a high concentration of nitrogen-vacancy centers. Differences are established in the concentrations and incorporation forms of nitrogen in different growth sectors and of nitrogen-vacancy defects formed as a result of the treatment. Comparison of photoluminescence (PL) spectra at excitation at 488 and 785 nm and the distribution of nitrogen defects with the results of PL visualization under radiation with wavelengths of 220, 254, and 365 nm showed that photoluminescence tomography is a very informative tool for analyzing the inhomogeneity of diamond products. The Ni impurity was localized nonuniformly, many additional PL lines in the near-IR range were registered in the zones of sector {111} with high concentration of A-defects. This feature complements the defect-impurity composition of the diamond element with a high concentration of NV centers and may adversely affect the characteristics of a promising laser material.
AB - Abstract: A detailed analysis of spectroscopic features and of the zonal and sectorial internal structure of a multisectorial HPHT diamond sample grown in the Fe–Ni–C system is presented. The sample was irradiated by electrons with energy of 3 MeV and a dose of 1.5 × 1018 electron cm–2 and then annealed in vacuum at 1200°C to obtain a high concentration of nitrogen-vacancy centers. Differences are established in the concentrations and incorporation forms of nitrogen in different growth sectors and of nitrogen-vacancy defects formed as a result of the treatment. Comparison of photoluminescence (PL) spectra at excitation at 488 and 785 nm and the distribution of nitrogen defects with the results of PL visualization under radiation with wavelengths of 220, 254, and 365 nm showed that photoluminescence tomography is a very informative tool for analyzing the inhomogeneity of diamond products. The Ni impurity was localized nonuniformly, many additional PL lines in the near-IR range were registered in the zones of sector {111} with high concentration of A-defects. This feature complements the defect-impurity composition of the diamond element with a high concentration of NV centers and may adversely affect the characteristics of a promising laser material.
KW - HPHT diamond
KW - NV centers
KW - photoluminescence
KW - sectoriality
KW - zonality
UR - https://www.mendeley.com/catalogue/cd772874-28c7-394a-9528-9d9e3f1c6089/
U2 - 10.3103/s1068335625602080
DO - 10.3103/s1068335625602080
M3 - Article
VL - 52
SP - S313–S318
JO - Bulletin of the Lebedev Physics Institute
JF - Bulletin of the Lebedev Physics Institute
SN - 1068-3356
IS - suppl 3
ER -
ID: 145057944