Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > High-quality nanometric bilayers prepared by aqueous solutions

Quality comparison of the 15 nanometres layers obtained by PAD (chemical deposition) or PLD (pulsed laser deposition).
Quality comparison of the 15 nanometres layers obtained by PAD (chemical deposition) or PLD (pulsed laser deposition).

Abstract:
CIQUS researchers (Singular Center for Research in Biological Chemistry and Molecular Materials, USC, Spain), demonstrate that the chemical methods can compete with the physical ones to obtain homogeneous ultra‐thin films and bilayers, from 4 nm, over large areas.

High-quality nanometric bilayers prepared by aqueous solutions

Santiago, Spain | Posted on March 26th, 2014

The research group of Rivadulla Francisco, awarded with 1.5 million euros through the ERC-Starting Grant, have published in the prestigious Chemistry of Materials the elaboration of nanometric bilayers with excellent quality from aqueous solutions. This simple and inexpensive method can compete with physical methods in the manufacture of ultra thin films, widely used in industries such as electronics and photovoltaic.

The synthesis of ultra-thin films and two-dimensional systems has become an essential element in the manufacture of different electronic devices. Physical deposition methods currently obtaining films with epitaxial growth (ie. perfectly ordered) and a controllable thickness, but they are very expensive and require highly specialized equipment (sputtering, PLD, MBE). While in the past decades many researchers have attempted to use chemical methods, they had not yet obtained a satisfactory quality, both morphologically and functional.

The research group has published several works which demonstrate overcoming three major drawbacks of chemical deposition techniques for two-dimensional nanoscale systems. On the one hand because the roughness is extremely low, a second layer can be deposited maintaining a perfectly defined interface between layers. Moreover, the growth of two layers is epitaxial. On the other hand a total control of the stoichiometry (chemical composition) is maintained and finally, it has been achieved to deposit over areas of several square centimeters, completely free of defects.

Specifically, they have deposited two layers of lanthanum oxides (manganese and cobalt), with a controlled thickness of only 18 and 4 nanometres, respectively (1 nm = one millionth of a millimetre).

####

For more information, please click here

Contacts:
Fernando Casal
R&D Management

Singular Research Centers Network
Center for Research in Biological Chemistry and Molecular Materials (CIQUS)
Universidade de Santiago de CompostelaCIQUS - C/ Jenaro de la Fuente s/n
15782 Santiago de Compostela - España
Tel. (+34) 881 815 782
(+34) 600 942 443

Copyright © CIQUS

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

SEMATECH to Showcase Innovation and Advances in Manufacturing at SEMICON Japan 2014: SEMATECH experts will share the latest techniques, emerging trends and best practices in advanced manufacturing strategies and methodologies November 26th, 2014

Australian startup creates world’s first 100% cotton hydrophobic T-Shirts November 26th, 2014

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Research yields material made of single-atom layers that snap together like Legos November 25th, 2014

Thin films

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Chemistry

Lawrence Livermore researchers develop efficient method to produce nanoporous metals November 25th, 2014

Aromatic food chemistry to the making of copper nanowires November 24th, 2014

UO-industry collaboration points to improved nanomaterials: University of Oregon microscope puts spotlight on the surface structure of quantum dots for designing new solar devices November 20th, 2014

Discoveries

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Vegetable oil ingredient key to destroying gastric disease bacteria: In mice, therapeutic nanoparticles dampen H. pylori bacteria and inflammation that lead to ulcers and gastric cancer November 25th, 2014

Research yields material made of single-atom layers that snap together like Legos November 25th, 2014

Announcements

SEMATECH to Showcase Innovation and Advances in Manufacturing at SEMICON Japan 2014: SEMATECH experts will share the latest techniques, emerging trends and best practices in advanced manufacturing strategies and methodologies November 26th, 2014

Australian startup creates world’s first 100% cotton hydrophobic T-Shirts November 26th, 2014

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Tools

Renishaw receives Queen's Award for spectroscopy developments November 25th, 2014

JPK reports on the use of AFM and the CellHesion module to study plant cells at the University of Queensland November 25th, 2014

A*STAR SIMTech wins international award for breaking new ground in actuators: SIMTech invention can be used in an array of industries, and is critical for next generation ultra-precision systems November 24th, 2014

Professional AFM Images with a Three Step Click SmartScan by Park Systems Revolutionizes Atomic Force Microscopy by Automatizing the Imaging Process November 24th, 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