IRG 1: Mobility in Glasses and Liquids
This group works to understand and predict mobility in glasses and supercooled liquids with atomic resolution over timescales of seconds or longer. They conduct unique, nanoscale, time-resolved experiments and simulations leveraging new methods in physics-aware, machine-learning.
The combination of atomic resolution and long times will lead to fundamental understanding of glass behavior including viscosity, fragility, and relaxation, as well as the ability to predict crucial glass properties such as plasticity and impurity diffusion from composition and thermal history.
The IRG’s scientific developments will enable rational design of organic and inorganic glasses, which the group will leverage to create high-mobility, anisotropic organic semiconductor glass films for organic electronics and stabilized, confined, drug molecule glasses for pharmaceutical preparations.
IRG 1 News and Highlights
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(2026) Physics-Aware Generative AI for Metallic Glasses
Wisconsin MRSEC IRG 1 developed a new generative AI model for metallic glasses, called GlassVAE. The model is based on ideas similar to ChatGPT, but adapted to describe the complex atomic structures…
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(2026) Physical Aging of Organic Semiconductor Glasses
Wisconsin MRSEC IRG 1 researchers used three experimental techniques to characterize physical aging in organic semiconductor glasses. They showed that producing the glasses by physical vapor deposition can reduce the impact of…
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MRSEC-Supported Research on Physics-Aware Generative AI Presented at AAAI-26
In January, Qiyuan Chen presented MRSEC-supported research at the 40th AAAI Conference on Artificial Intelligence (AAAI-26) in Singapore. With a highly selective acceptance rate of 17.6% this year, AAAI remains one of…
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(2025) Geometrically Accurate Coarse-Graining with AniSOAP
Wisconsin MRSEC researchers have developed a coarse-graining technique called AniSOAP (for anisotropic smooth overlap of atomic potentials) that gives the beads shapes that reflect the shape of the molecules they represent. This…
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(2025) A Nanoscale View of Molecule Alignment in an Organic Semiconductor
Wisconsin MRSEC researchers have developed a new way to see how molecules fit together with an electron microscope. They used the method to see how molecules rearrange when an organic semiconductor is…




