Monochromated STEM-EELS of Functional Materials скачать в хорошем качестве

Monochromated STEM-EELS of Functional Materials

This webinar is part of Beyond the Scope: CEMAS Discussion Series. In this presentation, Dr. David McComb discusses how monochromated electron sources allow electron energy-loss spectroscopy to be performed with high energy resolution to investigate chemistry, structure and bonding with high spatial resolution in organic and inorganic functional materials. He illustrates how direct electron detectors are allowing chemical bonds in the most electron beam sensitive materials to be investigated. With the development of improved imaging detectors that can allow determination of the positions of light elements such as oxygen with picometer precision, EELS in the STEM is a powerful approach for the study of a wide range of functional materials. Finally, he discusses the need to develop variable temperature instruments that would deliver stability and control at temperatures from a few Kelvin to ambient conditions to address challenges in polymeric, magnetic, nanophotonic, and quantum materials.