Navigation Links
Stanford engineers weld nanowires with light
Date:2/6/2012

One area of intensive research at the nanoscale is the creation of electrically conductive meshes made of metal nanowires. Promising exceptional electrical throughput, low cost and easy processing, engineers foresee a day when such meshes are common in new generations of touch-screens, video displays, light-emitting diodes and thin-film solar cells.

Standing in the way, however, is a major engineering hurdle: In processing, these delicate meshes must be heated or pressed to unite the crisscross pattern of nanowires that form the mesh, damaging them in the process.

In a paper just published in the journal Nature Materials, a team of engineers at Stanford has demonstrated a promising new nanowire welding technique that harnesses plasmonics to fuse the wires with a simple blast of light.

Self-limiting

At the heart of the technique is the physics of plasmonics, the interaction of light and metal in which the light flows across the surface of the metal in waves, like water on the beach.

"When two nanowires lay crisscrossed, we know that light will generate plasmon waves at the place where the two nanowires meet, creating a hot spot. The beauty is that the hot spots exist only when the nanowires touch, not after they have fused. The welding stops itself. It's self-limiting," explained Mark Brongersma, an associate professor of materials science engineering at Stanford and an expert in plasmonics. Brongersma is one of the study's senior authors.

"The rest of the wires and, just as importantly, the underlying material are unaffected," noted Michael McGehee, a materials engineer and senior author of the paper. "This ability to heat with precision greatly increases the control, speed and energy efficiency of nanoscale welding."

In before-and-after electron-microscope images, individual nanowires are visually distinct prior to illumination. They lay atop one another, like two fallen trees in
'/>"/>

Contact: Andrew Myers
admyers@stanford.edu
650-736-2245
Stanford School of Engineering
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Vermillion and Stanford Scientists Receive Best Research Award From the PAD Coalition
2. Stanford: Quantum computing spins closer
3. Cell Biosciences Delivers Next Generation System to Stanford University
4. Artemis Health Licenses Prenatal Cell-Free DNA Analysis Technology from Stanford University
5. Stanford writes in worlds smallest letters
6. Kornberg Associates Architects Selected to Develop Design for New Stanford University Imaging Center
7. Stanford researchers find a quicker, cheaper way to sort isotopes
8. Eiger BioPharmaceuticals Acquires Exclusive License to Novel Hepatitis C Virus (HCV) Technology From Stanford University
9. LASIK Expert Edward Manche, M.D., of the Stanford Eye Laser Center Joins Top Surgeons Listed at the Trusted LASIK Surgeons Directory
10. New technique reinforces immune cells that seek and destroy cancer, says Stanford researcher
11. Stanford scientists develop new way to grow adult stem cells in culture
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Stanford engineers weld nanowires with light
(Date:12/24/2014)... and NEW YORK , ... from its open-label pilot study of mazindol in children ... Development and Therapy in December 2014 . ... mazindol in children with attention deficit/hyperactivity disorder" ( Konofal ... 2014 Dec 1;8:2321-2332. eCollection 2014 ) shows ...
(Date:12/22/2014)... 2014  Alternative Energy & Environmental Solutions, Inc., ... a letter of intent to acquire BioTechPharma Corporation, ... a nanotechnology-based development platform used to create drug ... on-site collection and testing to identify infectious disease, ... an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... 2014 ITRA Global, one of the ... commercial real estate, has further expanded its global reach ... and Brisbane, Western Australia, reports Mylinda Vick, CCIM, Chairman ... ITRA Global / ACORPP (Australian Corporate Property and Projects) ... providing property services to a wide range of clients ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one of the nation’s ... Pharm.D. to the newly created position of Vice President ... Dr. Maroulis will continue to manage the entire specialty ... pharmacies as the company expands. Dr. Maroulis has been ... has served in many different capacities in the pharmacy, ...
Breaking Biology Technology:Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3ALNE Announces Intention To Acquire BioTechPharma 2ITRA Global Continues International Expansion in Perth and Brisbane, Australia 2BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2
... Calif., Feb. 24, 2011 Roche (SIX: RO, ROG; OTCQX: RHHBY) ... American Journal of Clinical Pathology demonstrated the ... HPV-16 and HPV-18, two of the highest risk HPV genotypes causing ... for Advanced HPV Diagnostics) study, which involved more than 47,000 women, ...
... Reportlinker.com announces that a new market research report ... Propylene Oxide: 2010 World Market Outlook And Forecast ... The report analyzes worldwide markets for Propylene oxide, ... It provides the most complete and current analytical ...
... (OTC Bulletin Board: OMBP):  Omni Bio Pharmaceutical, Inc. ("Omni ... James Crapo will become its Chief Executive Officer.  The ... Crapo as a director in the near term.  Dr. ... Chief Executive Officer since its inception in March 2009, ...
Cached Biology Technology:Pivotal Study Validates Roche's cobas® HPV Test with HPV-16 and 18 Genotyping for Identifying Women at Highest Risk for Cervical Cancer 2Pivotal Study Validates Roche's cobas® HPV Test with HPV-16 and 18 Genotyping for Identifying Women at Highest Risk for Cervical Cancer 3Reportlinker Adds Propylene Oxide: 2010 World Market Outlook and Forecast 2Omni Bio Pharmaceutical Realigns Management 2Omni Bio Pharmaceutical Realigns Management 3Omni Bio Pharmaceutical Realigns Management 4
(Date:12/17/2014)... 2014 Research and Markets ( ... "Global Chemical Sensor Market 2015-2019" report ... http://photos.prnewswire.com/prnh/20130307/600769 One major trend upcoming ... medical sensors in biomedical applications. Chemical sensors help ... correct diagnosis during surgical procedures. The Global Chemical ...
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... their offering. One major trend ... multimodal biometric systems. Multimodal biometric systems utilize more ... and identification purposes. This helps to reduce the ...
(Date:12/10/2014)... RALEIGH, N.C. , Dec. 9, 2014  Valencell, ... announced it is seeing a staggering demand from its ... demand, the Company revealed, is not solely coming from ... industries as well. "A wearable is only ... a result, accuracy is the ultimate driver in long-term ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... Assistance Foundation (AHAF, www.ahaf.org ), a nonprofit organization ... vision diseases, announced today that it has awarded 21 ... are studying glaucoma and macular degeneration. The two ... the world. "AHAF is known for pinpointing ...
... connection between the sickle cell trait and sudden cardiac ... observed in black military recruits 25 years ago, a ... confirms this risk for these individuals during competitive sports. ... African Americans are tested at birth, affects approximately 8 ...
... plants that suck water, nutrients and information from other plants ... of California, Davis, have now shown that they can make ... parasite taps into the host. "We think that this ... of plant biology at UC Davis, who led the project. ...
Cached Biology News:American Health Assistance Foundation announces grants to advance promising vision research 2American Health Assistance Foundation announces grants to advance promising vision research 3American Health Assistance Foundation announces grants to advance promising vision research 4Sickle cell trait can cause sudden cardiac death in black athletes: Why is this controversial? 2Sickle cell trait can cause sudden cardiac death in black athletes: Why is this controversial? 3Hitting back at 'wiretapping' parasite 2
... 384 Round Well ... Thermo Labsystems wide range ... ideal for high-throughput screening ... miniaturization of assays and ...
HLA-DRbeta (DA2)...
...
Bovine Renal Artery Endothelial Cells (BRAEC) (>500,000 cells)...
Biology Products: