Dorsa Parviz
Arizona State University Campus Immersion, AZ·Chemistry·Early-career
Electrons moving across the surface of a material drive sensors, catalysts and many energy technologies. Yet scientists still cannot predict how electrons move across the rough, uneven surfaces of real materials.
- Fields
Chemistry
Materials Science
Engineering
- Topics
interfacial electron transfer
charge transfer
electrostatics
- Grants
- 1 known grant, through Jul 2031
What they work on
- Synthesize mixed-metal oxides with controlled composition gradients, defects and surface terminations to create tunable nanoscale electrostatic landscapes, and map them with surface-potential measurements.
- Visualize where electron transfer is fast, slow or absent across uneven surfaces using redox-responsive fluorescent probes and single-molecule imaging.
- Combine imaging data with machine learning and physics-based simulations to find predictive links between local electrostatics and electron-transfer rates, and to uncover mechanisms such as charge trapping and screening.
More about the research
Small changes in composition, defects and surface chemistry create local electric fields over just tens of nanometers. These fields can speed up, slow down or redirect electron transfer. Measurements that average over large areas miss these variations.
Why it matters
Rules for controlling how charge moves across complex surfaces could guide the design of more efficient catalysts, sensors and energy materials. Linking nanoscale surface structure to electron-transfer behavior could replace trial-and-error with design principles for these technologies.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Valentine Vullev
University of California-Riverside, CA·Chemistry
Develop spectroscopic methods using electrochromism (the optical Stark effect, in which local electric fields shift absorption spectra) to probe and map molecular dipoles and the nanometer-scale fields they generate.
Mario Alpuche-Aviles
University of Nevada-Reno, NV·Chemistry
Develop a redox-mediated electrochemical scheme that detects antibody-gold-nanoparticle conjugates at ultramicroelectrodes under 30 micrometers across, selecting redox mediator pairs using Marcus theory of electron transfer.
Ellen Matson
University of Rochester, NY·Chemistry
Determine how hydrogen atoms are taken up at the surface of polyoxovanadate–alkoxide and –carboxylate clusters, molecular stand-ins for reducible metal oxide nanomaterials, mapping structure–function relationships through self-assembly and post-synthetic modification.
The school
Arizona State University Campus Immersion: 36 labs on PI Pages, $1.0B a year on research, 625 research doctorates a year.
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