Photoluminescence studies of 515.8 nm, 533.5 nm and 580 nm centres in electron irradiated type IIa diamond

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• 作者：Kaiyue Wang^a ; ^b ; John Steeds^a ; Zhihong Li^b ; ^{lizhihong@tju.edu.cn}
• 关键词：Photoluminescence ; Electron-irradiation ; Interstitials ; Diamond
• 刊名：Diamond and Related Materials
• 出版年：2012
• 期刊代码：30_09259635
• 类别：ms
• 出版时间：May, 2012
• 卷：25
• 期：Complete
• 页码：29-33
• 文件大小：757 K

摘要

A series of irradiations has been performed mainly on some very high purity CVD single crystal diamonds but also on some other diamond specimens at various electron doses and dose rates. The electron energies were sufficient to cause atomic displacements creating vacancies and self-interstitials in the irradiated samples. The 515.8 nm, 533.5 nm and 580 nm centres were commonly observed in low temperature photoluminescence examination of electron-irradiated type IIa diamonds. Details of their spectra indicate that they are all related to interstitial complexes.