Scientists Create Atomically Thin Metallic Boron
January 25, 2016 | Argonne National LaboratoryEstimated reading time: 4 minutes
As they grew the borophene monolayer, the researchers discovered another advantage within their experimental technique. Unlike previous experiments that used highly toxic gases in the production of nanoscale boron-based materials, this experiment involved a non-toxic technique called electron-beam evaporation, which essentially vaporizes a source material and then condenses a thin film on a substrate – in this case, boron on silver.
“When we did our theoretical work, I had doubts as to feasibility of obtaining two-dimensional boron because boron likes to form clusters, and ironing it out into two-dimensions I thought would be challenging,” Oganov said. “It turned out that growing on the substrate was key, because the boron and silver turn out not to react with each other.”
The experimental work was funded by the DOE’s Office of Science and was performed at Argonne’s Center for Nanoscale Materials, a DOE Office of Science User Facility, and at the Northwestern University Materials Research Center.
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