将MoS2晶体控制剥离成三层纳米板
Xiaobin Fan1,2, Pengtao Xu2, Yuguang C Li2
1State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China.
Journal of the American Chemical Society
|April 1, 2016
概括
研究人员开发了一种使用n-butyllithium去皮的新方法. 这种技术有效地产生了少层的MoS2,对于先进的材料研究和电子设备至关重要.
科学领域:
- 材料科学
- 纳米技术
- 固态化学
背景情况:
- 控制过渡金属二化物 (TMDs) 的剥皮是一项挑战.
- 纯净的单层或少层TMD纳米板对于研究和应用至关重要.
研究的目的:
- 开发一种用于剥离晶二硫化物 (MoS2) 的新方法.
- 在保持MoS2的半导体2H阶段的同时实现有效的脱皮.
主要方法:
- 使用低密度的n-丁进行MoS2晶体边缘的插入.
- 在45体积%的乙醇-水溶液中剥离间隔的MoS2.
主要成果:
- 成功地将MoS2剥离成纳米板悬浮物.
- 由此产生的纳米薄膜主要是三层,由电子显微镜和原子力显微镜证实.
- 与原始MoS2相比,剥皮效率提高了一级以上.
- 分散纳米片的质量产量达到了11-15%.
结论:
- 采用n-丁间隔方法提供了高效的几层MoS2纳米板的途径.
- 这种方法克服了TMD材料加工的重大障碍.
- 保留的2H阶段对电子和光电子设备应用具有前景.
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