Material Science Seminar

Wednesday, November 6, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
James Reuther, UMass Lowell

Dynamic, stimuli responsive materials represent an ever growing area of research owing to their reprocessability and reconfigurability of important materials properties on demand. We will discuss two sets of chemically-distinct, biomimetic macromolecules with unique dynamic behaviors. Synthetic helical polymers mimic naturally occurring biopolymers such as proteins and DNA in their chiral, helical backbone secondary structures. Discussed herein, includes the transition-metal mediated polymerization of functional polycarbodiimide homopolymers and block copolymers.

Monday, November 4, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Dr. John Bulmer, American Boronite Corporation

The conductivity and strength of industrial-scale carbon nanotube (CNTs) fiber incrementally continue to increase. Currently, their mechanical strength equals high-quality commercial carbon fiber with over ten times the conductivity-- making them the best material currently available for the multiplicative product, conductivity x strength. Much of the development of bulk CNT materials mirror the development of older carbon-based conductors, graphitic intercalation compounds (GICs) and conductive polymers such as iodine doped polyacetylene (iPaC).

Wednesday, October 30, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Dr. Ou Chen, Brown University

Colloidal nanocrystals have been widely studied for decades. Continuous optimizations in synthesis have allowed the production of quantum dots and other nanocrystals with exquisitely controlled size, shape, composition and surface state. Analogous to atoms/molecules, these high-quality nanocrystals can be used as artificial building blocks for constructing higher-order architectures that are relevant to various of applications.

Monday, October 21, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Liping Yu, University of Maine

The molecular-level description of the chemical bond between a solid surface and an atom or a molecule is the fundamental basis for understanding a broad range of scientific problems in heterogeneous catalysis, sensing, semiconductor device fabrication, fuel cells, anticorrosion, and tribology. Despite many decades of theoretical and experimental research in this area, what key physical factors and how they operate together in controlling the surface-adsorbate bonding strength remain elusive.

Wednesday, May 8, 2019 - 11:00am to 12:00pm  ·  Material Science Seminar
Dr. Jian Kang (Florida State University/High Magnetic Field Laboratory)

Abstract: Recent experiments on the twisted bilayer graphene have discovered the
correlated insulator phase and the neighboring superconductivity with
certain fillings of the charge carriers.

Monday, March 25, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Dr. Yiming Xu, Physical Review X
Wednesday, March 20, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Carola Purser, The Ohio State University

Abstract: Magnetic resonance (MR) measures chemical and magnetic properties and is the foundation of non-invasive detection techniques such as magnetic resonance imaging (MRI). Applied at the nanoscale, magnetic resonance would be capable of imaging the structure of biomolecules and of manipulating and characterizing magnetic device components. However, achieving MR with high spatial resolution is challenging due to the inherent weakness of spin coupling to inductive probes.

Wednesday, February 27, 2019 - 4:10pm to 5:00pm  ·  Material Science Seminar
Prof. Anatoly Frenkel, Stony Brook University and Brookhaven National Laboratory

The quest for unlocking the elusive nature of catalytic active sites in nanometer-scale catalysts often dictates the make-up of a research team. It includes chemists, able to make well-defined nano-structures that can range from shape-controlled nanoparticles to size-selected clusters to single site catalysts. Characterization experts develop new methods, required for their atomic-level characterization in operando conditions.

Wednesday, November 7, 2018 - 4:10pm to 5:00pm  ·  Material Science Seminar
Dr. Jean Anne C. Incorvia, University of Texas at Austin, Electrical & Computer Engineering Department

Abstract:

Monday, November 5, 2018 - 4:10pm to 5:00pm  ·  Material Science Seminar
Prof. Sanfeng Wu, MIT/Princeton