和同位素对六角化性质的影响
Eli Janzen1, Hannah Schutte1, Juliette Plo2
1Tim Taylor Department of Chemical Engineering, Kansas State University, 1005 Durland Hall, 1701A Platt St., Manhattan, KS, 66506-5102, USA.
Advanced materials (Deerfield Beach, Fla.)
|September 14, 2023
概括
同位素纯净的六角化 (hBN) 晶体使用和的单一同位素进行了生长. 这一进步可以精确控制用于热管理和量子技术的hBN特性.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术 纳米技术
背景情况:
- 六角化 (hBN) 是一种具有独特性质的二维材料,适用于先进的电子,光电子和量子设备.
- 以前的hBN同位素净化集中在同位素上,而仍然是自然丰富的 (主要是N).
研究的目的:
- 将hBN的同位素净化扩展到包括同位素,特别是N.
- 研究单同位素丰富和对hBN特性的影响.
主要方法:
- 使用金属流量方法生长了四种hBN晶体配置 (h10B14N,h11B14N,h10B15N,h11B15N).
- 使用单同位素丰富的和来源 (>99%纯度).
- 使用和作为晶体生长的溶剂.
- 通过深度拉曼和光发光谱学进行表征.
主要成果:
- 在所有四种配置中成功生长了高质量的单同位素hBN晶体.
- 证明N-纯化hBN具有与最先进的N-纯化hBN相匹配的振动和光学性能.
结论:
- 高质量的h10B14N,h11B14N,h10B15N,和h11B15N的合成为控制热导率在热管理应用中开辟了新的途径.
- 这些同位素纯的hBN材料为下一代量子技术提供了先进的功能.
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