Professor Rebekka Klausen

 

Professor Rebekka Klausen
Department of Chemistry
Johns Hopkins University
Host: Professor Marc Hillmyer

Abstract

Fragments of Crystalline Silicon via Target-Oriented Synthesis

Our experience of daily life includes tools made from the ubiquitous semiconductor silicon: computers, solar cells, and many more. Yet silicon synthesis relies on top-down, high-temperature approaches that yield only the most thermodynamically stable forms of silicon. Uncovering new structure-function space demands a different synthetic vision. This talk will describe the synthesis of molecular and polymeric silanes inspired by the complexity, selectivity, and elegance of target-oriented organic synthesis. Topics include the chemoselective polymerization of novel bifunctional silane monomers, selective preparation of linear and cyclic polycyclosilanes, and the stereocontrolled synthesis of cis- and trans-siladecalin. Approaches to the structural characterization of novel silane architectures will also be discussed.

Professor Klausen

The unifying theme of research in the Klausen research group is the application of rational organic synthesis to advance the frontiers of materials science. Through the atomic-level control provided by bottom-up synthesis, we precisely determine and control materials properties. In particular, researchers focus on carbon and silicon-based materials. Crystalline silicon, the preeminent solid state semiconductor, powers defining modern technologies like integrated circuits and solar cells. Inspired by the structure and properties of Group IV and III-V electronic materials, like silicon, graphene, and h-BN, they explore the synthetic chemistry and materials properties of carbon and silicon molecules, polymers, and other nanomaterials.

Professor Klausen joined the faculty at Johns Hopkins University (JHU) in July 2013. Prior to JHU, she earned her doctorate at Harvard University, and completed post-doctoral work at Columbia University.

Category
Departmental Seminar
Start date
Thursday, March 18, 2021, 9:45 a.m.
End date
Thursday, March 18, 2021, 11 a.m.
Location