報告題目：Revealing Chemical and Physical Properties at the Nanoscale

　　報 告 人：Evgeniya Sheremet  

　　報告時間：2024年5月18日下午18:00

　　報告地點：科技樓一樓明德學術報告廳

　　報告人簡介：

　　Dr. Evgeniya Sheremet has been a Professor at the Research School of Chemical and Biomedical Sciences at Tomsk Polytechnic University, Russia, since 2017. Her academic journey began with studying Nanotechnology at Novosibirsk State Technical University. In 2015, she earned her Ph.D. in Experimental Physics from the Chemnitz University of Technology, where she focused her thesis on 'Micro- and nano-Raman characterization of organic and inorganic materials.' Following her doctorate, Prof. Sheremet continued her research in nanocharacterization as part of the Solid Surfaces Analysis group at TU Chemnitz. Her work involved employing finite element simulations of the electromagnetic field. At present, she collaborates with Prof. Rodriguez to lead the dynamic research group known as TERS-Team. Their primary focus is exploring nanomaterials, their modification, analysis, and applications.

　　簡介內容：Nanomaterials are crucial in various fields, such as biomedicine, energy, composites, and catalysis. Understanding their properties at the nanoscale is essential for optimizing their applications. However, traditional bulk analysis methods lack detailed information on size, shape, and local chemical composition. In this presentation, we will explore the combination of scanning probe microscopy and optical spectroscopy techniques to obtain chemical insights at the nanoscale. We will begin with an in-depth discussion of tip-enhanced Raman spectroscopy (TERS), a powerful method based on Raman spectroscopy. TERS utilizes plasmonic nanoprobes integrated with atomic force microscopy (AFM) to achieve nanoscale resolution. We will delve into these methods’ working principles and limitations and showcase examples of their application in different nanomaterials. Additionally, we will introduce two other promising methods: nano-vis, which measures thermal expansion using AFM under modulated optical excitation and scanning electrochemical microscopy (SECM), which maps electrochemical activity using a nanoscale electrode tip. Collectively, these techniques offer unprecedented spatial resolution and provide valuable insights into nanomaterials’chemical and physical properties.

主辦單位：石河子大學化學化工學院

化工綠色過程兵團重點實驗室