Effects of Irradiation and Annealing on Nitrogen-Vacancy Center Yield in Diamond

被引：0

作者：

He, Jian ^{[1
]}

Liu, Jinlong ^{[1
]}

Xiu, Qinglei ^{[2
,3
]}

Sun, Zhijia ^{[2
,3
]}

An, Kang ^{[1
]}

Zheng, Yuting ^{[1
]}

Wei, Junjun ^{[1
]}

Chen, Liangxian ^{[1
]}

Li, Chengming ^{[1
]}

机构：

[1] Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing,100083, China

[2] State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing,100049, China

[3] Dongguan Neutron Science Center, Dongguan,523800, China

来源：

Guangxue Xuebao/Acta Optica Sinica | 2022年 / 42卷 / 13期

关键词：

Annealing - Electron irradiation - Nitrogen;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, nitrogen-vacancy centers in diamonds are created by high-energy electron irradiation and vacuum annealing. The macroscopic color changes and internal defect transformations in those diamonds before and after irradiation and annealing are investigated. The effects of irradiation dose and vacuum annealing temperature on the yield of nitrogen vacancies are discussed. The results show that the concentration of nitrogen-vacancy centers rises and then drops as irradiation dose increases. This is because under a higher irradiation dose, vacancies are more likely to form vacancy clusters, which do not constitute nitrogen-vacancy centers during the annealing process. The concentration of nitrogen-vacancy centers increases with the increasing annealing temperature and then saturates in the temperature range of 800-900 ℃. As the temperature further increases, the concentration declines due to the interaction of nitrogen vacancies with interstitial atoms generated during the irradiation process under a high temperature. © 2022, Chinese Lasers Press. All right reserved.

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