Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Go ahead, dunk your cell phone in salt water

Abstract:
Barrier films, used in everything from food and drug packaging to consumer electronics and solar cells, help prevent your food from spoiling, help to preserve medication, and protect your electronics from damage due to exposure to air or a splash of water. Now a group of researchers in Georgia have developed a new way to produce better films using atomic layer deposition.

Go ahead, dunk your cell phone in salt water

College Park, MD | Posted on October 30th, 2013

These are not the flimsy films of plastic that may seal a package of cookies. High-end barrier films that safeguard your phone's high-tech organic light-emitting diode (OLED) display from every whiff of oxygen or molecule of water vapor require higher performance transparent materials such as metal oxides.

Existing methods for manufacturing these high-performance barriers aren't perfect. Due to the way they're made, they often have small defects, resulting in tiny holes that let in water or oxygen. That's why Samuel Graham and his colleagues at the Georgia Institute of Technology have been exploring how to use atomic layer deposition to produce better barrier films. At the AVS 60th International Symposium and Exhibition, held in Long Beach, Calif. Oct. 27 - Nov. 1, Graham will discuss some of the latest developments in this effort.

Graham and his colleagues have created new barrier films that can protect electronics in very harsh environments - when submerged in salt water for months, for example.

"By creating such barrier films, we are able to extend the lifetime and reliability of electronic devices," Graham said. The new coatings can be used for electronics such as implantable biomedical devices, light-emitting diodes (LED) used in solid-state lighting and displays, solar cells, and organic electrochromic windows, which go from opaque to clear when a voltage is applied. Barrier films will play a large role in the development of many future electronic devices made with organic materials, Graham added.

How Atomic Layer Deposition Works

High-performance barrier films are usually made with techniques such as sputter deposition or plasma-enhanced chemical vapor deposition. In these methods, material is either "sprayed" onto a substrate or grown from a plasma, creating a thin layer that becomes the film. Although efficient and common in industry, these techniques often result in defects, requiring multiple coatings to create good barrier films.

With atomic layer deposition, the researchers have precise control down to the molecular level, allowing them to make thin, even films that have minimal defects. In this process, the researchers surround a substrate with a gas containing a particular metal atom like aluminum. The molecules of the gas attach themselves onto the substrate, forming a single layer of atoms. Next, excess gas is removed from the chamber and another gas is introduced that then oxidizes the metal, creating a metal oxide that's impervious to air or water. The process is repeated to reach the desired thickness, which is only about 10 nanometers. In contrast, films made with more conventional techniques are tens to hundreds of times thicker.

Companies are already developing and selling atomic layer deposition technology, Graham says. But for wide-scale commercial use, more work needs to be done to improve the technology, how fast the materials are deposited, and the chemical stability and mechanical reliability of the films.

###

Presentation TF+VT-WeM3, "Improving the Reliability of Electronics Using ALD Barrier Films," is at 8:40 a.m. Pacific Time on Wednesday, Oct. 30, 2013.

MORE INFORMATION ABOUT THE AVS 60th INTERNATIONAL SYMPOSIUM & EXHIBITION

The Long Beach Convention Center is located at 300 E. Ocean Blvd., Long Beach, CA 90802.

####

About American Institute of Physics
Founded in 1953, AVS is a not-for-profit professional society that promotes communication between academia, government laboratories, and industry for the purpose of sharing research and development findings over a broad range of technologically relevant topics. Its symposia and journals provide an important forum for the dissemination of information in many areas of science and technology, enabling a critical gateway for the rapid insertion of scientific breakthroughs into manufacturing realities.

For more information, please click here

Contacts:
Catherine Meyers

301-209-3088

Copyright © American Institute of Physics

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 Links

Main meeting website:

Technical Program:

Related News Press

News and information

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014

Canatu Launches CNB In-Mold Film for Transparent Touch on 3D Surfaces –in Cars, Household Appliances, Wearables, Portables November 20th, 2014

Discoveries

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 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

Silver Nanoparticles Produced in Iran from Forest Plants Extract November 20th, 2014

Nano Sorbents Able to Remove Pollutions Caused by Oil Derivatives November 20th, 2014

Materials/Metamaterials

Sustainable Nanotechnologies Project November 20th, 2014

Total Nanofiber Solutions Company FibeRio® Launches The Fiber Engine® FX Series Systems with 10X Increase in Output November 18th, 2014

Nanocomposites Strengthen Bone Implants November 13th, 2014

Production of Magnetic Nanoparticles with New Structures in Iran November 13th, 2014

Announcements

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014

Nano Sorbents Able to Remove Pollutions Caused by Oil Derivatives November 20th, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014

Quantum mechanical calculations reveal the hidden states of enzyme active sites November 20th, 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

Silver Nanoparticles Produced in Iran from Forest Plants Extract November 20th, 2014

Tools

Leica Microsystems Presents Universal Hybrid Detector for Single Molecule Detection and Imaging at SfN and ASCB: Leica HyD SMD - the Optimal Detector for Precise and Reliable SMD data November 20th, 2014

Nanometrics Announces Upcoming Investor Events November 19th, 2014

Two sensors in one: Nanoparticles that enable both MRI and fluorescent imaging could monitor cancer, other diseases November 18th, 2014

Field-emission plug-and-play solution for microwave electron guns: To simplify the electron emission mechanism involved in microwave electron guns, a team of researchers has created and demonstrated a field-emission plug-and-play solution based on ultrananocrystalline diamond November 18th, 2014

Food/Agriculture/Supplements

Production of Biodegradable Nanocomposites of Wheat Gluten in Iran November 6th, 2014

New tool could help reshape the limits of synthetic biology: The 'telomerator' reshapes synthetic yeast chromosome into more flexible, realistic form, redefining what geneticists can build November 3rd, 2014

Nanoparticles Display Ability to Improve Efficiency of Filters October 28th, 2014

Smallest world record has 'endless possibilities' for bio-nanotechnology October 8th, 2014

Energy

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

Eight19 secures £1m funding: Investment to develop production technology, and expand commercial activities for organic photovoltaics November 19th, 2014

Total Nanofiber Solutions Company FibeRio® Launches The Fiber Engine® FX Series Systems with 10X Increase in Output November 18th, 2014

Researchers create & control spin waves, lifting prospects for enhanced info processing November 17th, 2014

Events/Classes

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

Sustainable Nanotechnologies Project November 20th, 2014

Leica Microsystems Presents Universal Hybrid Detector for Single Molecule Detection and Imaging at SfN and ASCB: Leica HyD SMD - the Optimal Detector for Precise and Reliable SMD data November 20th, 2014

Nanometrics Announces Upcoming Investor Events November 19th, 2014

Solar/Photovoltaic

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

Eight19 secures £1m funding: Investment to develop production technology, and expand commercial activities for organic photovoltaics November 19th, 2014

Graphene/nanotube hybrid benefits flexible solar cells: Rice University labs create novel electrode for dye-sensitized cells November 17th, 2014

New materials for more powerful solar cells: Major breakthrough in solar energy November 11th, 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