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Watching, Understanding, and Manipulating the Formation of Functional Materials – A Case Study on Halide Perovskites: Nano Webinar Series
January 29, 2021 @ 2:00 pm - 3:00 pm
Dr. Carolin M. Sutter-Fella, LBNL, Molecular Foundry
The Zoom link for this event is https://berkeley.zoom.us/j/91622905815?pwd=eDBPNlBIMGQ5ZjNXREp5Q2VNUTQ2dz09
Material synthesis is a very important aspect of humankind’s endeavor to discover and create new materials for energy applications. In order to make materials with desired functions we need to know how these functions relate to structure, synthetic variables, arrangement of atoms and molecules, and how functions evolve during synthesis.
In this regard, the field of halide perovskites moved towards more and more complex compositions enabling improved device performance and stability. Most of the improvements, however, are chemical intuition driven or achieved through empirical optimization of processing conditions. Establishing the relationships between synthesis condition and film properties will enable active control of synthesis parameters and increase reproducibility. The formation of halide perovskites from colloidal precursors, including the initial stages of formation and the physicochemical evolution of properties via polydisperse nanocrystal nucleation and solvent-complexation will be discussed. We identify effects related to antisolvent dropping, how the Pb salt influences the crystallization pathway, how it can template morphology, and how additives can aid room temperature processing.
In this talk I will introduce new multimodal in situ platforms that we developed in part together with the Advanced Light Source (ALS) which enable correlative characterization of thin films deposited by chemical solution synthesis.
Carolin Sutter-Fella did her PhD in EE at ETH Zurich and postdoc here at UC Berkeley (Go Bears!). In 2017, Carolin was awarded the Glenn Seaborg Early Career Fellowship.