| 基于光谱测试的纯净金刚石品质与缺陷研究 |
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| 引用本文： | 张宇飞,王凯悦,李俊林,秦振兴,田玉明.基于光谱测试的纯净金刚石品质与缺陷研究[J].人工晶体学报,2022,51(5):926-932. |
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| 作者姓名： | 张宇飞 王凯悦 李俊林 秦振兴 田玉明 |
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| 作者单位： | 1.太原科技大学应用科学学院,太原 030024; 2.太原科技大学材料科学与工程学院,太原 030024; 3.山西科技学院材料科学与工程学院,晋城 048026 |
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| 基金项目： | 山西省重点研发计划(201903D321111)；;国家自然科学基金(51502189)； |
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| 摘 要： | 本文利用低温拉曼与光致发光光谱对纯净金刚石晶片的结晶质量、晶体应力分布进行表征分析,并结合电子辐照和快速退火对晶片的杂质缺陷结构开展研究。通过拉曼光谱对金刚石特征峰的表征分析发现,由于金刚石生长机制以及晶片的切割、抛光等因素影响,晶片的边缘与表面应力分布较高。光致发光光谱中的零声子线具有明显的温度依赖性,根据Jahn-Teller效应与电子-声子耦合理论阐明了测试温度变化引起中性单空位缺陷零声子线分裂与红移的机理。对晶片做电子辐照与退火调控处理后,晶片中氮-空位(NV)缺陷显著增多,表明在纯净晶片中氮主要以替代位氮杂质的形式存在。
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| 关 键 词： | 金刚石 光谱表征 晶体缺陷 色心 电子辐照 退火 |
| 收稿时间： | 2022-03-08 |
Spectroscopy Characterization Study on Quality and Defects of Pure Diamond |
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| ZHANG Yufei,WANG Kaiyu,LI Junlin,QIN Zhenxing,TIAN Yuming.Spectroscopy Characterization Study on Quality and Defects of Pure Diamond[J].Journal of Synthetic Crystals,2022,51(5):926-932. |
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| Authors: | ZHANG Yufei WANG Kaiyu LI Junlin QIN Zhenxing TIAN Yuming |
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| Affiliation: | 1. School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China; 2. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China; 3. School of Material Science and Engineering, Shanxi Institute of Science and Technology, Jincheng 048026, China |
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| Abstract: | In this paper, the low-temperature Raman and photoluminescence (PL) spectroscopy were employed to study the crystallization degree, stress distribution of the pure diamond film. Combined with electron irradiation and rapid annealing, the impurity defect structure of the pure diamond film was studied. Raman spectroscopy analysis shows that the stress distributions in edge and surface of the film are higher than in interior, which may be ascribed to the diamond growth mechanism, physical cutting and polishing damage to the films. The zero phonon lines in PL spectra show obvious temperature dependent, and the spectra peaks redshift, intensity reduction and low-temperature splitting with increase of temperature were explained by Jahn-Teller effect and electron-phonon coupling theory. Low temperature PL spectra observed distinct NV defects in the film after electron irradiation and 700 ℃ annealing,which indicate that the nitrogen mainly existed in the lattice with a form of substitution impurities. |
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| Keywords: | diamond spectral characterization crystal defect color center electron irradiation annealing |
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