Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

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

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Nanotech-enabled moisturizer speeds healing of diabetic skin wounds: Spherical nucleic acids silence gene that interferes with wound healing April 24th, 2015

Fast and accurate 3-D imaging technique to track optically trapped particles April 24th, 2015

Pseudoparticles travel through photoactive material: KIT scientists measure important process in the conversion of light energy -- publication in Nature Communications April 24th, 2015

Possible Futures

Printing Silicon on Paper, with Lasers April 21st, 2015

A glass fiber that brings light to a standstill: By coupling photons to atoms, light in a glass fiber can be slowed down to the speed of an express train; for a short while it can even be brought to a complete stop April 9th, 2015

Nanotechnology in Medical Devices Market is expected to reach $8.5 Billion by 2019 March 25th, 2015

Nanotechnology Enabled Drug Delivery to Influence Future Diagnosis and Treatments of Diseases March 21st, 2015

Chip Technology

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

Drexel materials scientists putting a new spin on computing memory April 22nd, 2015

Printing Silicon on Paper, with Lasers April 21st, 2015

Advances in molecular electronics: Lights on -- molecule on: Researchers from Dresden and Konstanz succeed in light-controlled molecule switching April 20th, 2015

Self Assembly

Scientists Use Nanoscale Building Blocks and DNA 'Glue' to Shape 3D Superlattices: New approach to designing ordered composite materials for possible energy applications April 23rd, 2015

Advances in molecular electronics: Lights on -- molecule on: Researchers from Dresden and Konstanz succeed in light-controlled molecule switching April 20th, 2015

Carnegie Mellon chemists create tiny gold nanoparticles that reflect nature's patterns April 9th, 2015

DWI scientists program the lifetime of self-assembled nanostructures April 9th, 2015

Sensors

ORNL reports method that takes quantum sensing to new level April 23rd, 2015

New class of 3D-printed aerogels improve energy storage April 22nd, 2015

‘Oxford Instruments Young Nanoscientist India Award 2015’ to Prof. Arindam Ghosh April 20th, 2015

Optical resonance-based biosensors designed for medical applications April 18th, 2015

Nanoelectronics

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

New class of 3D-printed aerogels improve energy storage April 22nd, 2015

‘Oxford Instruments Young Nanoscientist India Award 2015’ to Prof. Arindam Ghosh April 20th, 2015

Advances in molecular electronics: Lights on -- molecule on: Researchers from Dresden and Konstanz succeed in light-controlled molecule switching April 20th, 2015

Announcements

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Nanotech-enabled moisturizer speeds healing of diabetic skin wounds: Spherical nucleic acids silence gene that interferes with wound healing April 24th, 2015

Fast and accurate 3-D imaging technique to track optically trapped particles April 24th, 2015

Pseudoparticles travel through photoactive material: KIT scientists measure important process in the conversion of light energy -- publication in Nature Communications April 24th, 2015

Solar/Photovoltaic

Pseudoparticles travel through photoactive material: KIT scientists measure important process in the conversion of light energy -- publication in Nature Communications April 24th, 2015

Printing Silicon on Paper, with Lasers April 21st, 2015

Better battery imaging paves way for renewable energy future April 20th, 2015

The microscopic topography of ink on paper: Researchers have analyzed the varying thickness of printed toner in unprecedented 3-D detail, yielding insights that could lead to higher quality, less expensive and more environmentally-friendly glossy and non-glossy papers April 14th, 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