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Method to study the atomic structure of complex surfaces developed

Date:
October 10, 2012
Source:
McMaster University
Summary:
With a novel idea, a lot of work and some of the world’s most sophisticated equipment, researchers have developed a new way to study the structures of complex surfaces, opening the door to future discoveries in materials, energy and technology.

With a novel idea, a lot of work and some of the world's most sophisticated equipment, researchers at McMaster University have developed a new way to study the structures of complex surfaces, opening the door to future discoveries in materials, energy and technology.

Scientists from the Canadian Centre for Microscopy on the McMaster campus, working with a colleague from Université Pierre et Marie Curie in Paris, France, developed the new method by using transmission electron microscopy. It's a technique so powerful that it can be used to visualize and identify individual atoms at magnifications of several million times.

The centre's mandate is to provide unique electron microscopy capabilities and expertise to researchers working on a broad range of national and international materials-research projects. It is home to one of the world's most advanced and powerful electron microscopes, the Titan 80-300 Cubed.

The new research appears in the journal Nature. The scientists describe how they developed the method for looking at metal oxides, in this case strontium titanate, a notoriously challenging surface to study, but one that holds promise for many applications, including efficient lighting, energy generation and future information technology systems.

Gianluigi Botton, scientific director of the centre, said that until now, it had been nearly impossible to completely elucidate the atomic structure of the surface oxide from that of the material itself, due to the physical limitations of existing techniques.

Now, having shown that transmission electron microscopy can do the job, scientists can apply the same method to other challenging surfaces, with the promise of making it easier to split water to extract hydrogen for fuel, or to invent completely new types of electronic devices, for example.

"Surfaces are all around us," Botton explained. "Understanding their properties at this level can open up many possibilities."


Story Source:

The above story is based on materials provided by McMaster University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Guo-zhen Zhu, Guillaume Radtke, Gianluigi A. Botton. Bonding and structure of a reconstructed (001) surface of SrTiO3 from TEM. Nature, 2012; DOI: 10.1038/nature11563

Cite This Page:

McMaster University. "Method to study the atomic structure of complex surfaces developed." ScienceDaily. ScienceDaily, 10 October 2012. <www.sciencedaily.com/releases/2012/10/121010161845.htm>.
McMaster University. (2012, October 10). Method to study the atomic structure of complex surfaces developed. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2012/10/121010161845.htm
McMaster University. "Method to study the atomic structure of complex surfaces developed." ScienceDaily. www.sciencedaily.com/releases/2012/10/121010161845.htm (accessed October 22, 2014).

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