Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Diamond-like tip better than the best

Abstract:
German and US researchers have produced a super-sharp, strong, and resilient carbon tip that has earned top place as the industry's current benchmark.

Diamond-like tip better than the best

EU | Posted on March 2nd, 2010

Funded by the EU, the diamond-like tip is 3,000 times more wear-resistant at the nanoscale than a silicon oxide tip, making it ideal for use in atomic imaging, probe-based data storage, and other emerging applications. Findings from the study are published in the journal Nature Nanotechnology.

The research was part of PROTEM ('Probe-based terabit memory'), a project that received EUR 5.3 million under the 'Information society technologies' (IST) Thematic area of the Sixth Framework Programme (FP6). Collaborators on the current study include IBM Research-Zurich in Switzerland, and the US-based University of Pennsylvania and University of Wisconsin.

In their paper, the authors write that greater 'understanding of friction and wear at the nanoscale [the length scale applicable to nanotechnology] is important for many applications that involve nanoscale components sliding on a surface'. These emerging applications include nanolithography, nanometrology and nanomanufacturing.

Diamond-like carbon, they explain, is often used as a surface coating in certain types of applications that require low friction and wear because of its resistance to wear at the macroscale. Until now, the issue has always been the material's resilience to wear at the nanoscale because manufacturing diamond-like carbon structures with nanoscale precision is complex.

Another key difference between the macroscale and the nanoscale is that defects, cracks and other conditions that control material strength and wear at macroscopic scales are not as important at the nanoscale.

The new nano-sized tip produced by the researchers wears away at a significantly lower rate than that of a silicon oxide tip (the current state of the art). At a rate of one atom per micrometer of sliding on a substrate of silicon dioxide, the material has now set a new standard.

'[The diamond-like carbon material] is known to possess low friction in humid conditions, and we find that, at the nanoscale, it is three orders of magnitude more wear-resistant than silicon under ambient conditions,' they conclude.

The tip comprises carbon, hydrogen, silicon and oxygen, all combined together on the end of a silicon microcantilever (used in atomic force microscopy). Instead of simply coating the tip with wear-resistant materials, the scientists developed the material from scratch. They used a molding technique to produce the tips on the silicon microcantilevers, and a bulk processing technique that would allow for mass commercial manufacturing in the future.

For more information, please visit:

Nature Nanotechnology: www.nature.com/nnano/index.html

PROTEM project: www.protem-fp6.org/

IBM Research-Zürich: www.zurich.ibm.com/

Document Reference: Bhaskaran, H., et al. (2010) Ultralow nanoscale wear through atom-by-atom attrition in silicon-containing diamond-like carbon. Nature Nanotechnology (published online 31 January 2010). DOI: 10.1038/NNANO.2010.3.

####

About CORDIS
CORDIS, the Community Research and Development Information Service, is a free service provided by the Office for Official Publications of the European Communities.

It is dedicated to promoting participation in the EU research programmes and to facilitating the uptake of European research results by industry. The service contributes to achieve the strategic goal of the European Union to become the most competitive knowledge based economy in the world by 2010.

For more information, please click here

Copyright © CORDIS

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Harris & Harris Group Portfolio Company, HZO, Announces Partnerships with Dell and Motorola August 1st, 2015

Advances and Applications in Biosensing, Sensor Power, and Sensor R&D to be Covered at Sensors Global Summit August 1st, 2015

Kalam: versatility personified August 1st, 2015

Govt.-Legislation/Regulation/Funding/Policy

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

Kalam: versatility personified August 1st, 2015

Heating and cooling with light leads to ultrafast DNA diagnostics July 31st, 2015

Theoretical Physicists at Freie Universität Berlin Develop New Insights into Interface between Classical and Quantum Worlds July 31st, 2015

Nanoelectronics

Superfast fluorescence sets new speed record: Plasmonic device has speed and efficiency to serve optical computers July 27th, 2015

Spintronics: Molecules stabilizing magnetism: Organic molecules fixing the magnetic orientation of a cobalt surface/ building block for a compact and low-cost storage technology/ publication in Nature Materials July 25th, 2015

ORNL researchers make scalable arrays of 'building blocks' for ultrathin electronics July 22nd, 2015

An easy, scalable and direct method for synthesizing graphene in silicon microelectronics: Korean researchers grow 4-inch diameter, high-quality, multi-layer graphene on desired silicon substrates, an important step for harnessing graphene in commercial silicon microelectronics July 21st, 2015

Announcements

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Harris & Harris Group Portfolio Company, HZO, Announces Partnerships with Dell and Motorola August 1st, 2015

Advances and Applications in Biosensing, Sensor Power, and Sensor R&D to be Covered at Sensors Global Summit August 1st, 2015

Tools

Heating and cooling with light leads to ultrafast DNA diagnostics July 31st, 2015

Take a trip through the brain July 30th, 2015

Publication on Atomic Force Microscopy based nanoscale IR Spectroscopy (AFM-IR) persists as a 2015 top downloaded paper July 29th, 2015

Nanometrics Announces Upcoming Investor Events July 28th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project