氮掺杂金刚石{100}晶面的缺陷发光特性*

王凯悦; 朱玉梅; 李志宏; 田玉明*; 柴跃生; 赵志刚; 刘开

doi:10.7498/aps.62.097803

太原科技大学材料科学与工程学院,太原 030014

天津大学材料科学与工程学院,先进结构陶瓷与加工技术教育部重点实验室,天津 300072

The defect luminescences of{100}sector in nitrogen-doped diamond?

摘要: 氮是金刚石中最常见的杂质之一,其对金刚石的缺陷发光具有重要的影响.氮可以与金刚石中的本征缺陷形成复合缺陷.本文首先利用阴极射线发光照片(CL)对一个高温高压合成的氮掺杂金刚石进行表征,发现{100}晶面为蓝色,然后利用透射电子显微镜(TEM)对该晶面进行电子辐照及后续退火处理,以引入本征点缺陷进而形成含氮的复合缺陷,并利用低温光致发光光谱(PL光谱)表征其缺陷发光特性,发现该晶面主要以氮-空位复合缺陷(NV中心)发光为主,并伴随着较弱的503 nm发光.

关键词:

金刚石 /
缺陷 /
发光

Abstract: Nitrogen is one of the most commonly-observed impurities in diamond, and affects the luminescence of these defects greatly. The complexes could be obtained from the nitrogen atom trapping the native defects such as self-interstitials, vacancies. In this study, a high-pressure and high-temperature synthesized nitrogen-doped diamond was characterized by cathode luminescence (CL) image, and the results showed that the blue region of this sample is the{100}growth sector. The{100}sector was then electron-irradiated in transmission electron microscope (TEM) and subsequently annealed at high temperatures so as to introduce the native defects to further form the nitrogen-containing complexes. All the optical properties of these defects in diamond were investigated by the low temperature photoluminescence (PL) spectra. The PL of{100}sector dominated the strong luminescence of nitrogen-vacancy (NV) complexes together with a weak 503 nm signal.

氮掺杂金刚石{100}晶面的缺陷发光特性*

太原科技大学材料科学与工程学院,太原 030014

天津大学材料科学与工程学院,先进结构陶瓷与加工技术教育部重点实验室,天津 300072

关键词:

金刚石 /
缺陷 /
发光

The defect luminescences of{100}sector in nitrogen-doped diamond?

太原科技大学材料科学与工程学院,太原 030014

天津大学材料科学与工程学院,先进结构陶瓷与加工技术教育部重点实验室,天津 300072

Keywords:

金刚石 /
缺陷 /
发光

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