First graphene, then silicene and now germanene

Skip to Navigation

News

  • Published: Sep 11, 2014
  • Author: Steve Down
  • Channels: X-ray Spectrometry / Base Peak / Proteomics / Atomic / Chemometrics & Informatics / NMR Knowledge Base / Infrared Spectroscopy / Raman / MRI Spectroscopy / UV/Vis Spectroscopy
thumbnail image: First graphene, then silicene and now germanene

Scientists in Europe have succeeded in synthesising germanene, described as a cousin of graphene, following on from the recent preparation of silicene. The details were announced in New Journal of Physics and come in the same year that Chinese researchers reported a different route to the same two-dimensional material in Advanced Materials.  

While the Chinese work describes the synthesis on a platinum substrate, the European route used a different platform. Guy Le Lay, who worked on the project, explained how they first attempted to use silver as a substrate because it was so successful for silicene. "This attempt failed, so I decided to switch to a gold substrate, having remembered my old work from my PhD thesis, in which gold was grown onto a germanium substrate. I thought it would be worth trying the other way around," he said.

And work it did. Following the dry deposition of germanium onto gold, a 2D layer forming several phases was grown, one of these phases having the characteristic flat, 2D honeycomb structure expected for germanene. It was confirmed by scanning tunnel microscopy.

Like its predecessors, it is expected that germanene will have good optical, electrical and superconducting properties that will make it a valuable material for the electronics industry. "The synthesis of germanene is just the very beginning of a long quest. Indeed, success in the synthesis was not easy to achieve and quite demanding. A considerable amount of work is now needed to further characterize the electronic properties of the material," Le Lay concluded.

Social Links

Share This Links

Bookmark and Share

Microsites

Suppliers Selection
Societies Selection

Banner Ad

Click here to see
all job opportunities

Copyright Information

Interested in separation science? Visit our sister site separationsNOW.com

Copyright © 2017 John Wiley & Sons, Inc. All Rights Reserved