Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Technology using microwave heating may impact electronics manufacture

Continuous flow reactor
Continuous flow reactor

Abstract:
Engineers at Oregon State University have successfully shown that a continuous flow reactor can produce high-quality nanoparticles by using microwave-assisted heating - essentially the same forces that heat up leftover food with such efficiency.

Technology using microwave heating may impact electronics manufacture

Corvallis, OR | Posted on June 10th, 2014

Instead of warming up yesterday's pizza, however, this concept may provide a technological revolution.

It could change everything from the production of cell phones and televisions to counterfeit-proof money, improved solar energy systems or quick identification of troops in combat.

The findings, recently published in Materials Letters, are essentially a "proof of concept" that a new type of nanoparticle production system should actually work at a commercial level.

"This might be the big step that takes continuous flow reactors to large-scale manufacturing," said Greg Herman, an associate professor and chemical engineer in the OSU College of Engineering. "We're all pretty excited about the opportunities that this new technology will enable."

Nanoparticles are extraordinarily small particles at the forefront of advances in many biomedical, optical and electronic fields, but precise control of their formation is needed and "hot injection" or other existing synthetic approaches are slow, costly, sometimes toxic and often wasteful.

A "continuous flow" system, by contrast, is like a chemical reactor that moves constantly along. It can be fast, cheap, more energy-efficient, and offer lower manufacturing cost. However, heating is necessary in one part of the process, and in the past that was best done only in small reactors.

The new research has proven that microwave heating can be done in larger systems at high speeds. And by varying the microwave power, it can precisely control nucleation temperature and the resulting size and shape of particles.

"For the applications we have in mind, the control of particle uniformity and size is crucial, and we are also able to reduce material waste," Herman said. "Combining continuous flow with microwave heating could give us the best of both worlds - large, fast reactors with perfectly controlled particle size."

The researchers said this should both save money and create technologies that work better. Improved LED lighting is one possibility, as well as better TVs with more accurate colors. Wider use of solid state lighting might cut power use for lighting by nearly 50 percent nationally. Cell phones and other portable electronic devices could use less power and last longer on a charge.

The technology also lends itself well to creation of better "taggants," or compounds with specific infrared emissions that can be used for precise, instant identification - whether of a counterfeit $20 bill or an enemy tank in combat that lacks the proper coding.

In this study, researchers worked with lead selenide nanoparticles, which are particularly good for the taggant technologies. Other materials can be synthesized using this reactor for different applications, including copper zinc tin sulfide and copper indium diselenide for solar cells.

New Oregon jobs and businesses are already evolving from this work.

OSU researchers have applied for a patent on aspects of this technology, and are working with private industry on various applications. Shoei Electronic Materials, one of the collaborators, is pursuing "quantum dot" systems based on this approach, and recently opened new manufacturing facilities in Eugene, Ore., to use this synthetic approach for quantum dot enabled televisions, smartphones and other devices.

The research has been supported by the Air Force Research Laboratory, OSU Venture Funds, and the Oregon Nanoscience and Microtechnologies Institute, or ONAMI.

####

About Oregon State University
The OSU College of Engineering is among the nation¹s largest and most productive engineering programs. Since 1999, the college has more than tripled its research expenditures to $37.2 million by emphasizing highly collaborative research that solves global problems, spins out new companies, and produces opportunity for students through hands-on learning.

For more information, please click here

Contacts:
Greg Herman

541-737-2496

Copyright © Oregon State University

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

Download article:

Related News Press

News and information

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Piezoelectricity in a 2-D semiconductor: Berkeley Lab researchers discovery of piezoelectricty in molybdenum disulfide holds promise for future MEMS December 22nd, 2014

Quantum physics just got less complicated December 22nd, 2014

Enzyme Biosensor Used for Rapid Measurement of Drug December 22nd, 2014

Display technology/LEDs/SS Lighting/OLEDs

Unraveling the light of fireflies December 17th, 2014

TCL Launches World’s Most Advanced TV in the World’s Largest Market: New Quantum Dot TVs with Color IQ™ Optics Deliver OLED-Quality Color at a Fraction of the Price December 15th, 2014

Dartmouth researchers create 'green' process to reduce molecular switching waste December 15th, 2014

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

Law enforcement/Anti-Counterfeiting/Security/Loss prevention

Fraud-proof credit card possible because of quantum physics December 16th, 2014

Govt.-Legislation/Regulation/Funding/Policy

Mysteries of ‘Molecular Machines’ Revealed: Phenix software uses X-ray diffraction spots to produce 3-D image December 22nd, 2014

Piezoelectricity in a 2-D semiconductor: Berkeley Lab researchers discovery of piezoelectricty in molybdenum disulfide holds promise for future MEMS December 22nd, 2014

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Chip Technology

Instant-start computers possible with new breakthrough December 19th, 2014

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Stanford team combines logic, memory to build a 'high-rise' chip: Today circuit cards are laid out like single-story towns; Futuristic architecture builds layers of logic and memory into skyscraper chips that would be smaller, faster, cheaper -- and taller December 15th, 2014

Discoveries

Mysteries of ‘Molecular Machines’ Revealed: Phenix software uses X-ray diffraction spots to produce 3-D image December 22nd, 2014

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Piezoelectricity in a 2-D semiconductor: Berkeley Lab researchers discovery of piezoelectricty in molybdenum disulfide holds promise for future MEMS December 22nd, 2014

Enzyme Biosensor Used for Rapid Measurement of Drug December 22nd, 2014

Announcements

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Piezoelectricity in a 2-D semiconductor: Berkeley Lab researchers discovery of piezoelectricty in molybdenum disulfide holds promise for future MEMS December 22nd, 2014

Quantum physics just got less complicated December 22nd, 2014

Enzyme Biosensor Used for Rapid Measurement of Drug December 22nd, 2014

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

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Piezoelectricity in a 2-D semiconductor: Berkeley Lab researchers discovery of piezoelectricty in molybdenum disulfide holds promise for future MEMS December 22nd, 2014

Quantum physics just got less complicated December 22nd, 2014

Enzyme Biosensor Used for Rapid Measurement of Drug December 22nd, 2014

Patents/IP/Tech Transfer/Licensing

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Silicon Valley-Based Foresight Valuation Launches STR-IP™, a New Initiative for Startups to Discover the Value of Their Intellectual Property December 18th, 2014

Chemists Fabricate Novel Rewritable Paper: An attractive alternate to regular paper, UC Riverside-developed technology helps address increasing problems in environment and resource sustainability December 2nd, 2014

Dicerna Announces License Agreement with Tekmira to Advance Dicerna’s PH1 Development Program November 17th, 2014

Military

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

UCLA engineers first to detect and measure individual DNA molecules using smartphone microscope December 15th, 2014

Nanoshaping method points to future manufacturing technology December 11th, 2014

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

SUNY Poly NanoCollege Faculty Member Selected as American Physical Society Fellow: SUNY Poly Associate Professor of Nanoscience Dr. Vincent LaBella Recognized for Significant Technological Innovations that Enable Interactive Learning December 17th, 2014

“Line dancing bacteria win the 2014 Dolomite and Lab on a Chip Video Competition” December 16th, 2014

Lifeboat Foundation gives 2014 Guardian Award to Elon Musk December 16th, 2014

UCLA engineers first to detect and measure individual DNA molecules using smartphone microscope December 15th, 2014

Quantum Dots/Rods

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Scientists trace nanoparticles from plants to caterpillars: Rice University study examines how nanoparticles behave in food chain December 16th, 2014

TCL Launches World’s Most Advanced TV in the World’s Largest Market: New Quantum Dot TVs with Color IQ™ Optics Deliver OLED-Quality Color at a Fraction of the Price December 15th, 2014

Electron pairs on demand: Controlled emission and spatial splitting of electron pairs demonstrated December 4th, 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