TECH FRONT New Insights Into Graphene


G


raphene has been a material of interest for many years, but usable applications have been elusive. The interac- tion of the material and its environment have signifi cant infl u- ence on the use of graphene by the semiconductor industry. A new project from the University of Vienna explores how the pitfalls of graphene can be resolved.


One of the biggest challenges with using graphene is


controlling how the material interacts with its environment at the atomic level. Even the interaction between graphene and the substrate (which is necessary because of graphene’s extreme thinness) was only partly understood. A team of researchers lead by Thomas Pichler, who has been experi- menting with graphene for years, has made progress in making graphene-based nanoelectric components usable for semiconductor technology. “We were able to demonstrate a correlation between charge transfer—the shifting of electrons—and mechanical


The manipulation of the structure of graphene provides new insights into how the material can be used practically.


strain in graphene for the fi rst time,” Pichler said. “This obser- vation could be of major practical signifi cance, as it means that the entirely contactless measurement of internal strain in graphene-based components may be possible in the future.” The team also made strides in controlling the interface between graphene and traditional semiconductors like ger- manium on the atomic level for the fi rst time.


Image courtesy the Austrian Science Fund


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