AFM网络讲堂系列（1）：石墨烯包覆纳米探针——获得高可靠性、长寿命导电探针的新途径
SPEAKERS
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Dr. Fei Hui
Technion-Israel Institute of Technology, Israel
- Fei Hui, Postdoctoral fellow at Technion-Israel Institute of Technology, Dr. Hui got her PhD degree in Nanoscience in 2018 at the University of Barcelona. During her PhD, she studied at Massachusetts Institute of Technology (MIT, USA) for 12 months and the University of Cambridge (UK) for 6 months. She has published over 38 research papers, 11 of them are as first author, including Nature Electronics, Advanced Functional Materials, ACS Applied Materials and Interfaces, 2D materials, Nanoscale. Moreover, Dr. Hui edited one book chapter on CAFM for Wiley-VCH, and applied for two international patents. She has been awarded 2019 Park AFM Scholarship, Mobility Grant of Royal Society of Chemistry. Her research interests focus on chemical vapor deposition of high-quality two-dimensional materials and the application in nanoelectronics
- Access Speaker Publications
SPEAKERS
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- Dr. Fei Hui
- Technion-Israel Institute of Technology, Israel
Authors
扫描探针显微镜（SPM）已经广泛应用于各个学科领域，其中，纳米探针是扫描探针显微镜中的重要组成部分，它不仅决定了图像的分辨率，而且确保了电学、热学、机械学等方面的测试。然而，导电SPM探针有一个突出的问题是：以导电原子力显微镜中导电探针为例，薄的导电镀层（20 nm）在接触模式或高电流下极易受损，从而失去导电性，导致较低的实验效率和高的科研成本。在此次网络讲堂中，将会介绍一种简易方法（浸涂、喷涂技术）制备的高性能石墨烯探针。通过将高柔性的石墨烯包覆在市售的导电纳米探针表面，利用二维材料石墨烯优异的机械性能、高的导电导热性，可以提高普通导电探针的耐磨性及避免高电流通过产生的局部过热。实验结果表明，石墨烯纳米探针可实现在保证图像高分辨率的前提下，同时提高的导电探针的使用寿命。此外，该制备方法也适用于制备其它二维材料包覆纳米探针，研究材料的压电性、可靠性等性能。在讲堂中，也讲介绍如何根据实验挑选合适的导电探针，以及分享实验过程中如何避免导电探针快速磨损的经验。
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