Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Triboelectric Nanogenerators Boost Mass Spectrometry Performance March 1st, 2017

Biosensors: Distance makes the signal grow stronger March 1st, 2017

Smart multi-layered magnetic material acts as an electric switch: New study reveals characteristic of islands of magnetic metals between vacuum gaps, displaying tunnelling electric current March 1st, 2017

Bioinspired process makes materials light, robust, programmable at nano- to macro-scale: Ultralight web of silk nano fibers withstands load 4,000 times its weight February 28th, 2017

Govt.-Legislation/Regulation/Funding/Policy

Triboelectric Nanogenerators Boost Mass Spectrometry Performance March 1st, 2017

Bioinspired process makes materials light, robust, programmable at nano- to macro-scale: Ultralight web of silk nano fibers withstands load 4,000 times its weight February 28th, 2017

Nano 'sandwich' offers unique properties: Rice University researchers simulate two-dimensional hybrids for optoelectronics February 27th, 2017

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

Nanoelectronics

Smart multi-layered magnetic material acts as an electric switch: New study reveals characteristic of islands of magnetic metals between vacuum gaps, displaying tunnelling electric current March 1st, 2017

GLOBALFOUNDRIES Announces Availability of 45nm RF SOI to Advance 5G Mobile Communications: Optimized RF features deliver high-performance solutions for mmWave beam forming applications in 5G smartphones and base stations February 22nd, 2017

Particles from outer space are wreaking low-grade havoc on personal electronics February 19th, 2017

Liquid metal nano printing set to revolutionize electronics: Creating integrated circuits just atoms thick February 18th, 2017

Announcements

Triboelectric Nanogenerators Boost Mass Spectrometry Performance March 1st, 2017

Biosensors: Distance makes the signal grow stronger March 1st, 2017

Smart multi-layered magnetic material acts as an electric switch: New study reveals characteristic of islands of magnetic metals between vacuum gaps, displaying tunnelling electric current March 1st, 2017

Bioinspired process makes materials light, robust, programmable at nano- to macro-scale: Ultralight web of silk nano fibers withstands load 4,000 times its weight February 28th, 2017

Tools

NovAliX Turns to High-Resolution Cryo-Transmission Electron Microscopy for Pre-Clinical Drug Discovery Research: Thermo Fisher Scientific’s Cryo-TEM provides critical information for small molecule and biologic drug discovery February 28th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

JPK selects compact tensile stage from Deben for their NanoWizard® AFM platform to broaden capabilities for materials characterisation February 22nd, 2017

Molecular phenomenon discovered by advanced NMR facility: Cutting edge technology has shown a molecule self-assembling into different forms when passing between solution state to solid state, and back again - a curious phenomenon in science - says research by the University of Wa February 22nd, 2017

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