当前位置: X-MOL 学术Int. J. Refract. Met. Hard Mater. › 论文详情
C3H6N6 doping effect of synthetic diamond under high pressure and high temperature
International Journal of Refractory Metals & Hard Materials ( IF 2.794 ) Pub Date : 2019-11-11 , DOI: 10.1016/j.ijrmhm.2019.105150
Junzhuo Wang, Shangsheng Li, Meihua Hu, Taichao Su, Guangjin Gao, Mingming Guo, Yue You, Yuan Nie

In this paper, large diamond crystals were successfully synthesized under 5.6 GPa at temperature 1513 and 1553 K with melamine (C3H6N6) additive. Fourier transform infrared spectroscopy (FTIR) indicated C3H6N6 is an ideal nitrogen source for large diamond crystal synthesized by temperature gradient method (TGM), but its hydrogen is not absorbed by diamond. With the increase of C3H6N6 content, the colour of diamond changed from yellow to green, and the highest nitrogen content of diamond is 2300 ppm. High synthesis temperature can effectively reduce the formation of defects and play a key role in the formation of C-centers during diamond growth. Surprisingly, diamond is likely to grow into twin crystal when the C3H6N6 content is 0.1 wt%. In the process of diamond growth, carbon atoms of C3H6N6 are likely to serve as carbon source to form plane dislocations, which eventually lead to the formation of twin diamond. Raman spectra show that there are few crystal defects in diamond synthesized with C3H6N6 as dopant.
更新日期:2019-12-11

 

全部期刊列表>>
宅家赢大奖
向世界展示您的会议墙报和演示文稿
全球疫情及响应:BMC Medicine专题征稿
新版X-MOL期刊搜索和高级搜索功能介绍
化学材料学全球高引用
ACS材料视界
x-mol收录
自然科研论文编辑服务
南方科技大学
南方科技大学
西湖大学
中国科学院长春应化所于聪-4-8
复旦大学
课题组网站
X-MOL
深圳大学二维材料实验室张晗
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug