硫协同掺杂金刚石单晶的合成  

Synthesis of sulfur-doped diamond single crystals

作　　者：马红安[1] 贾晓鹏[1] MA Hongan;JIA Xiaopeng(State Key Laboratory of Superhard Materials,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学超硬材料国家重点实验室,吉林长春130012

出　　处：《超硬材料工程》2024年第2期1-6,共6页Superhard Material Engineering

基　　金：国家自然科学基金(编号:51172089,51772120,51872112)。

摘　　要：金刚石是目前世界已知物质中集最大硬度、最大热导率、最小压缩率、最宽透光波段、最快声速、抗强酸强碱腐蚀、抗辐射、击穿电压高、载流子迁移率大等多种优异性能于一体的极限性功能材料,广泛应用于工业、科技和国防等领域。掺杂金刚石单晶除具有金刚石本身的优异性能外,还赋予金刚石新的功能特性,引起了科研工作者的广泛关注。硫元素在天然和人工合成金刚石中具有独特的角色,不但其本身可作为合成金刚石的触媒,而且在调配金属触媒特性方面具有独特作用。硫协同掺杂金刚石单晶在调控金刚石内部色心、探索n型金刚石的制备等方面也起着重要作用。文章着重介绍课题组多年来在铁基含硫体系合成工业金刚石单晶,以及硫协同掺杂大尺寸金刚石单晶方面的研究进展。Diamond is the ultimate functional material with the greatest hardness,the greatest thermal conductivity,the minimum compression rate,the widest transmittance band,the fastest sound speed,strong acid and alkali corrosion resistance,radiation resistance,high breakdown voltage,high carrier mobility and so on.It is widely used in industry,science and technology,national defense and other fields.Doped diamond single crystal not only has excellent performance of diamond itself,but also endow diamond with new functional properties,which has attracted extensive attention of scientific researchers.Sulfur element plays a unique role in natural and synthetic diamond,not only sulfur itself can be used as catalyst in synthetic diamond,but also has a unique role in the preparation of metal catalyst properties.Sulfur doped single diamond crystal also plays an important role in regulating the inner color center of diamond and exploring the preparation of N-type diamond.This paper mainly introduces the research progress in the synthesis of industrial diamond single crystals in iron-based sulfur-containing system and sulfur co-doped large diamond single crystals in our research group.

关 键 词：铁基含硫触媒 硫协同掺杂 金刚石单晶 高温高压 

分 类 号：TQ164[化学工程—高温制品工业]