Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 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

Particle Works creates range of high performance quantum dots February 23rd, 2017

Chemistry

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

In-cell molecular sieve from protein crystal February 14th, 2017

Nano-level lubricant tuning improves material for electronic devices and surface coatings February 11th, 2017

Scientists determine precise 3-D location, identity of all 23,000 atoms in a nanoparticle: Berkeley Lab researchers help to map iron-platinum particle in unprecedented detail February 6th, 2017

Thin films

Dual-function nanorod LEDs could make multifunctional displays February 11th, 2017

NREL research pinpoints promise of polycrystalline perovskites February 8th, 2017

Discoveries

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 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

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

Announcements

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 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

Particle Works creates range of high performance quantum dots February 23rd, 2017

Tools

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

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 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