Research Highlights

Chemical Physics
The Rules of Photon Thunderdome
two triplet-state ions eliminate each other to create an excited singlet which fluoresces
Published: October 05, 2020

During upconversion photoluminescence in rubrene, four triplet state ions fight it out to release a single high-energy photon. 

PI: J. Mathias Weber
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Chemical Physics
Recreating Fuels from Waste Gas
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Published: November 21, 2016

Graduate student Mike Thompson of the Weber group wants to understand the basic science of taking carbon dioxide (CO2) produced by burning fossil fuels and converting it back into useful fuels. People could then use these fuels to generate electricity, heat homes and office buildings, power automobiles and trains, fly airplanes, and drive the industrial processes of modern life.

PI: J. Mathias Weber
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Chemical Physics
Refueling the Future - with Carbon Dioxide
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Published: December 07, 2012

Graduate student Ben Knurr and Fellow Mathias Weber have added new insight into a catalytic reaction based on a single gold atom with an extra electron that transfers this electron into carbon dioxide molecules (CO2). This reaction could be an important first step future industrial processes converting waste CO2 back into chemical fuels. As such, it could play a key role in a future carbon-neutral fuel cycle.

PI: J. Mathias Weber
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Chemical Physics
Good Vibrations
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Published: April 03, 2010

Mathias Weber and his team recently did the following experiment: They excited the methyl group (CH3) on one end of nitromethane anion (CH3NO2-) with an infrared (IR) laser. The laser got the methyl group vibrating with enough energy to get the nitro group (NO2) at the other end of the molecule wagging hard enough to spit out its extra electron.

PI: J. Mathias Weber
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Chemical Physics
A Light Changing Experience
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Published: April 29, 2009

The Weber group wants to understand how the individual building blocks of DNA interact with ultraviolet (UV) light. Such knowledge would be an important step toward gaining a detailed understanding of the molecular processes responsible for the UV-induced DNA damage that results in mutations and can lead to cancer or cell death.

PI: J. Mathias Weber
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Chemical Physics
One Ring to Rule Them All
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Published: February 12, 2008

Benzene has a special ring structure that allows some of its electrons to be shared among all six carbon atoms in the ring. It turns out that chemists like Fellow J. Mathias Weber can adjust the charge density in the ring by exchanging hydrogen (H) atoms in the ring with other atoms or groups of atoms. Such exchanges can change the charge pattern in the ring "seen" by neighboring molecules.

PI: J. Mathias Weber
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