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PSD Innovation Network
Welcome to the fourth installment of the UChicago PSD Innovation Network eNewsletter. Prior issues are archived on the PSD website. We continue to look for new commercial partnerships for the division and invite your questions and input.
Warm regards,

Adele Goldberg, SM'68, PhD'73
Chair, University of Chicago PSD Innovation Network

What Would You Produce by Soldering or 3D Printing Semiconductors?
Henry FrischA research team led by professor of chemistry Dmitri Talapin has demonstrated how semiconductors can be soldered and still deliver excellent electronic performance. The work was recently published in Science.
Researchers and engineers have long struggled with joining semiconducting surfaces, which are very sensitive to impurities and structural defects. The new materials developed by Talapin's group, which are applied as a liquid or paste then heated, join two pieces of a semiconductor with a compositionally matched material with greatly improved interfacial properties. In one application, the soldering approach set a new record in solution-processed semiconductors, by almost a factor of 10, for electron mobility, a measure for how quickly electrons move through the materials.
Semiconductor soldering is expected to lead to the development of less expensive, higher quality solution-processed materials needed for entry into new markets, such as printable electronics, 3D printing, flat-panel-display manufacturing, solar cells, and thermoelectric heat-to-electricity generators.
Notably, 3D printing of semiconductors has not been possible before, despite market advances. A semiconductor solder offers the opportunity to print semiconducting objects in custom shapes and sizes.
Improved manufacturing methods for semiconducting materials will also boost the continued growth of networks such as the Internet of Things, in which everyday objects such as traffic lights and cars can communicate automatically via tiny, ubiquitous, networked sensors integrated into buildings and bridges. Semiconductor devices will be needed to convert sunlight or heat to electricity to receive, process, and transmit information within these networks.
Professor Talapin and UChicagoTech look forward to conversations on moving these new materials from the laboratory into a variety of applications.
Read more about this discovery. Learn more about Talapin and visit his lab.
We are excited to hear your thoughts about new applications for semiconductor solder.
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