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Oregon chemists eye improved thin films with metal substitution
Date:7/21/2014

of nanoscale cluster compound, and then step-by-step substitute out the individual metal atoms to make new clusters that cannot be made by direct methods. The cluster we report in this paper serves as an excellent solution precursor to make very smooth thin films of amorphous aluminum indium oxide, a semiconductor material that can be used in transparent thin-film transistors."

Transmetalation normally involves a reaction done in organic chemistry in which the substitution of metal ions generates new metal-carbon bonds for use in catalytic systems and to synthesize new metal complexes.

"This is a new way to use the process," Kamunde-Devonish said, "Usually you take smaller building blocks and put them together to form a mix of your basic two or three metals. Instead of building a house from the ground up, we're doing some remodeling. In everyday life that happens regularly, but in chemistry it doesn't happen very often. We've been trying to make materials, compounds, anything that can be useful to improve the processes to make thin films that find application in a variety of electronic devices."

The process, she added, could be turned into a toolbox that allows for precise substitutions to generate specifically desired properties. "Currently, we can only make small amounts," she said, "but the fact that we can do this will allow us to get a fundamental understanding of how this process happens. The technology is possible already. It's just a matter of determining if this type of material we've produced is the best for the process."


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Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

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