An understanding of solid-liquid interfaces is significant for various applications including solution based nanomaterials synthesis, solar to fuel conversion, batteries and so on. Transmission electron microscopy is evolving as an increasingly important tool for multidisciplinary research in areas ranging from materials science and engineering to biology, physics and chemistry. My group has been studying materials transformations and dynamic phenomena at solid-liquid interfaces by developing and applying in situ liquid phase electron microscopy. In this talk, I will show a series of our studies with liquid phase electron microscopy, including the revealing of 2D nanocrystal growth in solution, semiconductor nanocrystal deformability during self assembly, and dissolution-deposition at electrode-electrolyte interfaces during charge cycles in a nanobattery liquid cell. At the end, the future challenges and opportunities of in situ electron microscopy will be discussed.
Dr. Zheng has been leading her research group at LBNL since 2010. She currently researches physical and chemical processes of materials with a focus on materials transformations and dynamic phenomena at solid-liquid interfaces. Her primary approach is developing and applying in situ liquid phase electron microscopy. Dr. Zheng has over 100 publications with the total citations more than 17,500 times and an H index of 48. She received DOE Office of Science Early Career Award in 2011, LBNL Director’s award for exceptional scientific achievements in 2013. She was promoted to a senior scientist in LBNL in 2018. More information is available at http://haimei.zheng.lbl.gov
Hosts: Bryce Sadtler & Rohan Mishra
Faculty, students, and the general public are invited.
Hosted by: Bryce Sadtler/Rohan Mishra