Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

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

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Haydale Named Lead Sponsor for Cambridge Graphene Festival May 22nd, 2015

Simulations predict flat liquid May 21st, 2015

Chemistry

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

Nanosorbent Produced in Iran to Adsorb Tiny Amounts of Aromatic Hydrocarbon from Seawater May 18th, 2015

Thin films

Sandia researchers first to measure thermoelectric behavior by 'Tinkertoy' materials May 20th, 2015

Defects can 'Hulk-up' materials: Berkeley lab study shows properly managed damage can boost material thermoelectric performances May 20th, 2015

Efficiency record for black silicon solar cells jumps to 22.1 percent: Aalto University's researchers improved their previous record by over 3 absolute percents in cooperation with Universitat Politècnica de Catalunya May 18th, 2015

Discoveries

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Nanotherapy effective in mice with multiple myeloma May 21st, 2015

Turn that defect upside down: Twin boundaries in lithium-ion batteries May 21st, 2015

Announcements

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Haydale Named Lead Sponsor for Cambridge Graphene Festival May 22nd, 2015

INSIDDE: Uncovering the real history of art using a graphene scanner May 21st, 2015

Tools

Nanometrics Announces Live Webcast of Upcoming Investor and Analyst Day May 20th, 2015

Taking control of light emission: Researchers find a way of tuning light waves by pairing 2 exotic 2-D materials May 20th, 2015

DELMIC announces a workshop hosted by Phenom World on Integrated CLEM to be held on Wednesday June 24th at the Francis Crick Institute (Lincoln Inn Fields Laboratory). May 19th, 2015

DiATOME enables surface preparation for AFM and FIB May 19th, 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