Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Leti Achieves Groundbreaking Discovery in Using Copper-based Catalysts to Synthesize Silicon Nanowire

Abstract:
Project Demonstrates that Silicon Nanowire Synthesis can be CMOS-Compatible

Leti Achieves Groundbreaking Discovery in Using Copper-based Catalysts to Synthesize Silicon Nanowire

Grenoble, France | Posted on October 7th, 2009

Leti, the leading research and development institute focused on micro- and nano-technologies, announced today that it has broken new ground in the integration of nanotechnology with traditional complementary metal oxide semiconductor (CMOS) chip technology. CMOS is the most widely used technology for manufacturing silicon integrated circuits.

Leti researchers have demonstrated that the synthesis of silicon nanowire can be achieved at temperatures as low as 400 °C by using a copper-based catalyst and an unconventional preparation method. That is much lower than temperatures previously achieved for silicon nanowire synthesis using copper.

This technological breakthrough helps to bridge the gap between CMOS technology and the bottom-up growth of nanowires. It is expected to impact the IC markets by making it possible to add new non-digital functions - such as sensors and advanced photovoltaic architectures - to CMOS chip-making processes.

In a recently published Nature Nanotechnology article, Leti researchers explained that they achieved their breakthrough result by taking an approach transgressing a very well established axiom in nanowire growth. Previously, researchers have assumed that oxidized metals are not suitable for nanowire synthesis, so they usually have tried to remove the oxide. Leti achieved its industry-changing results by oxidizing the copper catalyst and using the high chemical activity of this oxide to reduce synthesis temperature of the nanowires. Leti's research shows that it is possible to grow silicon nanowires with a CMOS-compatible catalyst and at CMOS-compatible temperatures.

Independent thinking culture

"At Leti, we aim to produce knowledge that is usable by industry. This nanowire breakthrough is a beautiful illustration of our mission because the project was bound by industrial constraints from the start," said Leti CEO Laurent Malier. "Leti's unique ability to achieve these results stems from our long-term experience in industrial process development, and our broad range of complementary nano-characterization techniques. Leti's culture, which encourages independent thinking and the freedom to act upon it, was also a key component in this project."

Semiconductor nanowires, which offer a variety of potential uses, have been a subject of basic research for about 10 years. On one hand, in chemistry and biology, the interest is related to nanowires' high surface-to-volume ratio, which makes them well-suited for the electrical detection of chemical or biological substances. Their high surface-to-volume ratio may also be an advantage in solar energy production. Nanowires' small mass, on the other hand, makes them interesting for mechanical mass detection.

All of these potential applications have already been demonstrated by basic research, and technologists are excited about applying them in new devices. One promising idea is to implement new functions such as sensing and energy production on top of integrated circuits. Until now, computing has relied on external power and user input. Nanowire technology has the potential to create computing devices that benefit from both internally generated energy production and direct environmental input.

To view the article in Nature Nanotechnology, visit www.nature.com/nnano/journal/vaop/ncurrent/abs/nnano.2009.234.html

####

About CEA-Leti
CEA is a French Research and Technology Organization, with activities in three main areas: Energy, Technologies for Information and Healthcare, and Defence and Security. Within CEA, the Laboratory for Electronics & Information Technology (CEA-Leti) works with companies in order to increase their competitiveness through technological innovation and transfers. Leti is focused on micro and nanotechnologies and their applications, from wireless devices and systems, to biology and healthcare or photonics. Nanoelectronics and Microsystems (MEMS) are at the core of its activities. As a major player in the MINATEC® excellence center, Leti operates 8,000-m² state-of-the-art clean rooms, on 24/7 mode, on 200mm and 300mm wafer standards. With 1,200 employees, Leti trains more than 150 Ph.D. students and hosts 200 assignees from partner companies. Strongly committed to the creation of value for the industry, Leti puts a strong emphasis on intellectual property and owns more than 1,400 patent families. In 2008, contractual income covered more than 75 percent of its budget, which totalled 205 M€.

For more information, please click here

Contacts:
Clément Moulet, Press Officer
Tel.: +33 4 38 78 03 26

Copyright © CEA-Leti

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

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

High-Performance, Low-Cost Ultracapacitors Built with Graphene and Carbon Nanotubes: Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles April 23rd, 2014

Guo Lab Shows Potential of RNA as Heat-resistant Polymer Material for Nanoarchitectures April 23rd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Possible Futures

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Surface Characteristics Influence Cellular Growth on Semiconductor Material March 12th, 2014

The "Tipping Point" February 12th, 2014

Chip Technology

Harris & Harris Group Notes the Receipt of Proceeds From the Sale of Molecular Imprints' Semiconductor Business to Canon April 22nd, 2014

Progress made in developing nanoscale electronics: New research directs charges through single molecules April 21st, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Scientists open door to better solar cells, superconductors and hard-drives: Research enhances understanding of materials interfaces April 14th, 2014

Self Assembly

Roomy cages built from DNA: Self-assembling cages are the largest standalone 3-D DNA structures yet, and could one day deliver drugs, or house tiny bioreactors or photonic devices March 13th, 2014

Cypress’s TrueTouch® Touchscreen Controllers Compatible with Cima NanoTech’s SANTE® Silver Nanoparticle-Based Touch Sensors: Supporting Designs for Advanced Touch Applications March 5th, 2014

Coupled carbon and peptide nanotubes achieved for the first time: twins nanotubes March 1st, 2014

A potentially revolutionnary material: Scientists produce a novel form of artificial graphene February 15th, 2014

Sensors

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Biologists Develop Nanosensors to Visualize Movements and Distribution of Plant Stress Hormone April 15th, 2014

LetiDays Grenoble to Present Multiple Perspectives on Development, Challenges and Markets for the IoT April 14th, 2014

Nanoelectronics

Progress made in developing nanoscale electronics: New research directs charges through single molecules April 21st, 2014

Better solar cells, better LED light and vast optical possibilities April 12th, 2014

Catching the (Invisible) Wave: UC Santa Barbara researchers create a unique semiconductor that manipulates light in the invisible infrared/terahertz range, paving the way for new and enhanced applications April 11th, 2014

Nanotech Business Review 2013-2014 April 9th, 2014

Announcements

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

High-Performance, Low-Cost Ultracapacitors Built with Graphene and Carbon Nanotubes: Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles April 23rd, 2014

Guo Lab Shows Potential of RNA as Heat-resistant Polymer Material for Nanoarchitectures April 23rd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Solar/Photovoltaic

Like a hall of mirrors, nanostructures trap photons inside ultrathin solar cells April 22nd, 2014

Global leader in solar cell manufacturing eyes New York for major expansion outside of Japan: CNSE and Solar Frontier Explore $700 Million Investment, Job Creation in New York State April 22nd, 2014

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

A molecular approach to solar power: Switchable material could harness the power of the sun — even when it’s not shining April 15th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE