Anomalous Green Luminescent Properties in CVD Synthetic Diamonds
Anomalous Green Luminescent Properties in CVD Synthetic Diamonds
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DOI：
10.1002/pssa.201800292
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发表时间：
2018-10
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影响因子：
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通讯作者：
Amber M. Wassell;Colin D. McGuinness;C. Hodges;P. Lanigan;D. Fisher;P. Martineau;M. Newton;S. Lynch
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文献类型：
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作者：
Amber M. Wassell;Colin D. McGuinness;C. Hodges;P. Lanigan;D. Fisher;P. Martineau;M. Newton;S. Lynch
在本文中，作者探索了在合成CVD金刚石宝石的紫外发光光谱中观察到的中心位于499.6 nm（以前报道为499 nm）的尖锐发射线的光谱特性。这些宝石还表现出以435 nm为中心的光谱提示宽蓝色发光，这与IIa型天然金刚石的425 nm蓝色发光特性相似。通过将结果与经过高温退火的合成CVD金刚石材料进行比较，作者可以推测与该色心相关的缺陷的性质。由于迄今为止仅在合成CVD金刚石中观察到499 nm光谱线，因此作者进一步提出，它有助于识别合成金刚石，特别是那些通常与IIa型天然金刚石相关的蓝色发光特征。
In this paper, the authors explore the spectral properties of a sharp emission line centered at 499.6 nm (reported previously as 499 nm) observed in the UV‐luminescence spectrum of synthetic CVD diamond gemstones. These gemstones also exhibit spectrally prompt broad blue luminescence centered at 435 nm which is similar in character to the 425 nm blue luminescence characteristic of type IIa natural diamonds. By comparing the results against synthetic CVD diamond material which has been subjected to high temperature anneals, the authors can speculate on the nature of the defect associated with this color center. Since the 499 nm spectral line has only been observed in synthetic CVD diamonds to date, the authors further propose that it can be helpful in the identification of synthetic diamonds, in particular those showing the blue luminescence signature usually associated with type IIa natural diamonds.