HomeEducationGraduate and Undergraduate ProgramsResearch Experience for Undergraduates (REU)2021 Hot Materials Talks

2021 Hot Materials Talks

CCMR sponsors 5 Hot Materials Research Talks throughout the summer. The talks are open to all REU students and will take place virtually on
Thursdays at 10:00 AM EST.

“Local Magnetic Measurements of Unconventional Superconductors”
Prof. Katja Nowack
Department of Physics
Thursday, June 24th 10am
Register in advance for this meeting: https://cornell.zoom.us/meeting/register/tJIqc-ugqDovE9S5c1ALgblJ3VGVhIRpQNHj
Superconductors are materials that can conduct electricity without any loss below a temperature characteristic for the material. Another defining property of a superconductor is its response to an applied magnetic field. In this talk, I will discuss how we use local magnetic measurements on superconductors to gain insights into their nature.

“Seeing Order and Disorder with X-rays”
Prof. Nozomi Ando
Department of Chemistry and Chemical Biology
Thursday, July 8th 10am
Register in advance for this meeting:
I’ll talk about the fundamentals of X-ray diffraction and scattering, and how they shed light onto the structure and dynamics of materials, from salt crystals to proteins and metal organic frameworks.

“Just Imagine, What Scientific and Technological Advances Can We Expect in the Field of Nanomaterials Over the Course of the Next 15 Years?”
Prof. Tobias Hanrath
Department of Chemical and Biomolecular Engineering
Thursday, July 15th 10am
Register in advance for this meeting:
Imagine what will be possible five, ten, or twenty years from now if we can realize better control over structure and composition of ‘programmable matter’ not just at the nanoscale, but across all length scales relevant to the function of the material. Beyond creating novel materials, these advances will enable unprecedented control over transport processes (electrons, phonons, molecules through the interstitial volumes) and processes at the surface (e.g. chemical reactions).
Concurrent advances in the programmable synthesis of nanostructured materials and additive 3D manufacturing have created a rich and exciting opportunity space for emerging technologies. We consider, creating complex hierarchical device geometries from mesoporous materials as a specific example with several scientifically interesting and technologically relevant challenges. We recently showed how digital light processing of photoresponsive building block defined by an oxozirconium methacrylate cluster with 12 methacrylic acid ligands can be used to enable the creation of complex superstructures characterized by multi-level porous networks. Inspired by similarly complex 3D hierarchical mesoporous structures ubiquitous in nature, we demonstrated the fabr ication of a 3D leaf as a proof of concept. We’ve subsequently extended this fabrication process to other starting materials (i.e., inks) including colloidal semiconductor quantum dots and silica cages. Beyond the materials chemistry aspects, we also investigated how printing at fluid interfaces enables faster print speeds compared to conventional digital light processing approaches. This work demonstrates how exciting opportunity space emerging at the intersection of inorganic building blocks, mesoporous materials and 3D digital light processing opens new pathways to create functional hierarchical superstructures and devices with complex geometries.

“Magic from Magic-Sized Clusters”
Prof. Richard Robinson
Department of Materials Science and Engineering
Thursday, July 22nd 10am
Register in advance for this meeting:
Our research group works to gain a fundamental understanding of how to program and process nanoscale building blocks into functional structures, and the structure-property relationships of the resulting nanostructured materials. Our end-goal is to develop new nano-materials and methods for batteries, fuel cells, and printable electronics. In this talk I will discuss our work on magic sized inorganic clusters, which are only 1.5 nm in diameter. We’ve found new growth regimes for creating these particles and have discovered emergent new properties of these magic sized clusters, including their ability to reversibly isomerize.

“Computational Self-assembly Studies in Soft matter: Simple Particles, Complex Structures”
Prof. Julia Dshemuchadse
Department of Materials Science and Engineering
Thursday, July 29th 10am
Register in advance for this meeting:
Soft condensed matter systems that are made of colloids, nanoparticles, or block copolymer or dendrimer micelles can form various structures, and in recent years, increasingly complex ordered structures have been found in rapid succession. By using minimalistic particle models such as hard polyhedral shapes or spherical particles that interact via attractive pair potentials, we can model the self-assembly of these systems via molecular dynamics and Monte Carlo simulations. We find a staggering variety of crystal structures that arise, and we use these computational models to study the process of crystal growth and how the assembled structures depend on the composition and environment of these particle systems. Our goals are to both deduce overarching rules of structure formation, as well as provide design targets for future soft materials.

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