在HV-CVD合成中,产生了B-doped SWCNTs,其直径分布受限
Dido Denier van der Gon1, Ramon Pinna-Brito1, Zhirui Liu2
1University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090, Vienna, Austria. dido.denier.van.der.gon@univie.ac.at.
概括
高真空化学蒸汽沉积可靠地生长小直径的添加单壁碳纳米管 (SWCNTs). 这种方法提供了一致的,狭窄的直径分布,对于半导体应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 单壁碳纳米管 (SWCNTs) 是具有可调节性质的基础纳米材料.
- 替代性兴奋剂,特别是,是修改半导体应用中SWCNT特性的一个关键策略.
研究的目的:
- 展示一种可靠的方法来合成具有控制直径的添加SWCNT.
- 通过高真空化学蒸气沉积 (HV-CVD) 研究合成参数对SWCNT特性的影响.
主要方法:
- 使用高真空化学蒸汽沉积 (HV-CVD) 进行SWCNT合成.
- 采用了各种不同支的单金属和多金属催化剂.
- 研究了原料成分和压力对生长过程的影响.
主要成果:
- 实现了小直径添加SWCNT的可靠和一致的增长.
- 在300°C温度窗口中显示出一个狭窄的直径分布,这在很大程度上独立于催化剂成分.
- 确定了原料和压力作为影响直径分布的主要因素,合成参数的影响较小.
结论:
- 使用含的低蒸汽压原料的HV-CVD是一种多功能和强大的方法,用于生产具有定义,窄直径分布的SWCNT.
- 开发的方法最大限度地减少了对后处理的需求,使其适用于工业半导体应用.
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