天然和培育金刚石品质表征与呈色分析

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (11): 1939-1945.

天然和培育金刚石品质表征与呈色分析

潘越^1,2, 刘书成^1,2, 张笑鸣^1,2, 张帮萱^1,2, 姚迪^1,2, 胡阔^1,2, 臧传义^1,2, 周强^1,2, 刘兆东^1,2, 刘冰冰^1,2

1.吉林大学物理学院,超硬材料国家重点实验室,长春 130012;
2.吉林大学综合极端条件高压科学中心,长春 130012

收稿日期:2023-06-16 出版日期:2023-11-15 发布日期:2023-11-17
通信作者: 胡阔,博士,助理研究员。E-mail:hukuo@jlu.edu.cn;臧传义,博士,研究员。E-mail:dndzcy@jlu.edu.cn
作者简介:潘越(1999—),女,河南省人,硕士研究生。E-mail:panyue22@mails.jlu.edu.cn
基金资助:
国家自然科学基金(41902034,42272041,12011530063,51822204,51320105007,52302043);国家重点研发计划(2022YFB3706602,2018YFA0305900,2018YFA0703400);吉林大学高层次创新团队(2021TD-05)

Nature and Cultivated Diamond: Quality Characterization and Color Causes Analysis

PAN Yue^1,2, LIU Shucheng^1,2, ZHANG Xiaoming^1,2, ZHANG Bangxuan^1,2, YAO Di^1,2, HU Kuo^1,2, ZANG Chuanyi^1,2, ZHOU Qiang^1,2, LIU Zhaodong^1,2, LIU Bingbing^1,2

1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;
2. Extreme Condition High-Pressure Science Center, Jilin University, Changchun 130012, China

Received:2023-06-16 Online:2023-11-15 Published:2023-11-17

摘要/Abstract

摘要： 金刚石是集最高硬度、超宽禁带、最高热导率等优异性能于一体的典型超硬多功能材料,天然金刚石储量低且价格昂贵,其中彩色天然金刚石在自然界中产储量极其稀少且致色机制较为复杂。高温高压法是制备金刚石的有效手段,然而调控金刚石颜色获得可控的彩色金刚石,仍面临极大挑战。本文通过对粉色、绿色天然和高温高压温度梯度法制备的金刚石进行一系列拉曼、荧光、红外和可见光吸收测试,详细地研究其品质、缺陷随温度变化及致色原因,发现彩色金刚石致色与电中性的N₂V缺陷(H₃)、剪切应力、塑性形变和NV⁰/NV^-色心等因素相关。通过各种手段获得不同颜色的金刚石不仅是为了其欣赏及收藏价值,其颜色的调控也有助于人们对金刚石形成机制的进一步了解,为培育彩色金刚石提供新的参考。

关键词: 彩色金刚石, 超硬材料, 天然金刚石, 高温高压, 色心, 致色机制

Abstract: Diamond is a typical superhard multifunctional material with excellent properties such as the highest hardness, ultra-wide band gap and the highest thermal conductivity. The reserve of natural diamond is small and the price is expensive. Color diamonds are a very small part of nature diamonds and their coloring mechanisms are extremly complicated. It is a effective method to synthesize diamond by high temperature and high pressure method, but it is still a great challenge to modulate and realize color diamonds. In this paper, the quality, structural defects and impurities of color (pink and green) diamonds were studied by Raman, photuluminescence, infrared and visible absorption technologies, and the quality, defect changes with temperature and the cause of color were studied in detail. It is found that the coloring mechanism was related to electrically neutral N₂V defect (H₃), shear stress, plastic deformation and NV⁰/NV^- color center etc. Obtaining color diamonds by various methods is not only for their highly valued gemstones, but also helps people to further understand the formation mechanism of diamond, and provides a new reference for the cultivation of colored diamonds.

Key words: color diamond, superhard material, natural diamond, high temperature and high pressure, color center, coloring mechanism

中图分类号:

TQ164.8

潘越, 刘书成, 张笑鸣, 张帮萱, 姚迪, 胡阔, 臧传义, 周强, 刘兆东, 刘冰冰. 天然和培育金刚石品质表征与呈色分析[J]. 人工晶体学报, 2023, 52(11): 1939-1945.

PAN Yue, LIU Shucheng, ZHANG Xiaoming, ZHANG Bangxuan, YAO Di, HU Kuo, ZANG Chuanyi, ZHOU Qiang, LIU Zhaodong, LIU Bingbing. Nature and Cultivated Diamond: Quality Characterization and Color Causes Analysis[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(11): 1939-1945.

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