Navigation Links
'Nano machine shop' shapes nanowires, ultrathin films
Date:8/29/2012

WEST LAFAYETTE, Ind. A new "nano machine shop" that shapes nanowires and ultrathin films could represent a future manufacturing method for tiny structures with potentially revolutionary properties.

The structures might be "tuned" for applications ranging from high-speed electronics to solar cells and also may have greater strength and unusual traits such as ultrahigh magnetism and "plasmonic resonance," which could lead to improved optics, computers and electronics.

The researchers used their technique to stamp nano- and microgears; form tiny circular shapes out of a material called graphene, an ultrathin sheet of carbon that holds promise for advanced technologies; and change the shape of silver nanowires, said Gary Cheng, an associate professor of industrial engineering at Purdue University.

"We do this shaping at room temperature and atmospheric pressure, like a nano-machine shop," said Cheng, working with doctoral students Ji Li, Yiliang Liao,Ting-Fung Chung and Sergey Suslov and physics professor Yong P. Chen.

Graphene and nanowires filaments 1,000 times thinner than a human hair have numerous potential applications. However, technologies are needed to tailor them for specific uses. The new method, called laser shock-induced shaping, makes it possible to tune nanowires by altering electrical and optoelectrical properties critical for electronic components and instruments.

The researchers also have shown how laser shock-induced shaping can be used to change the properties of graphene, a step toward harnessing the material for electronic applications.

Findings were detailed in research papers published in the journal Nano Letters, and the work also was highlighted earlier this month in the News and Views section of the journal Nature Photonics.

The technique works by using a multilayered sandwich structure that has a tiny mold at the bottom. Nanowires were situated directly above the mold, and other materials were layered between the nanowires and a glass cover sheet. Exposing this layered "forming unit" to an ultra-fast pulsing laser causes one of the layers to burn up, generating a downward pressure that forces the nanowires into the mold and changing their shape.

"The process could be scaled up for an industrial roll-to-roll manufacturing process by changing laser beam size and scanning speed," Cheng said. "The laser shock-induced shaping approach is fast and low-cost."

Part of the research, funded by the National Science Foundation, was carried out in a specialized clean room at the Birck Nanotechnology Center in Purdue's Discovery Park.


'/>"/>
Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Related biology technology :

1. Breakthrough in nanotechnology
2. New imaging technique homes in on electrocatalysis of nanoparticles
3. Engineers achieve longstanding goal of stable nanocrystalline metals
4. Novel technique to synthesize nanocrystals that harvest solar energy
5. New phenomenon in nanodisk magnetic vortices
6. Advance in X-ray imaging shines light on nanomaterials
7. UCF nanoparticle discovery opens door for pharmaceuticals
8. Virtual nanoscopy: Like Google Earth for cell biologists
9. New structural information on functionalization of gold nanoparticles
10. A giant step in a miniature world: UZH researcher measures the electrical charge of nano particles
11. Nano-FTIR - A new era in modern analytical chemistry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Nano machine shop' shapes nanowires, ultrathin films
(Date:5/25/2016)... ... May 25, 2016 , ... Lady had been battling arthritis since ... ligament in her left knee. Lady’s owner Hannah sought the help of Dr Jeff ... surgeon, to repair her cruciate ligament and help with the pain of Lady’s arthritis. ...
(Date:5/24/2016)... , ... May 24, 2016 , ... ... newly re-branded identity. The new Media Cybernetics corporate branding reflects a results-driven revitalization ... imaging and image analysis. The re-branding components include a crisp, refreshed logo and ...
(Date:5/23/2016)... , May 23, 2016 - Leading ... 40% - Frontage Implement a Single Platform to Manage ... and Traceability Within the Bioanalytical lab Frontage Laboratories, a ... United States and China , has ... laboratory facilities. In addition to serving as the global electronic lab ...
(Date:5/20/2016)... Minneapolis, MN (PRWEB) , ... May 20, 2016 , ... ... and consumer goods companies, today announced its official 25th anniversary of the business. “We ... we are so grateful to our customers for the privilege and honor of serving ...
Breaking Biology Technology:
(Date:3/17/2016)... 17, 2016 ABI Research, the leader ... global biometrics market will reach more than $30 ... from 2015. Consumer electronics, particularly smartphones, continue to ... anticipated to reach two billion shipments by 2021 ... Pavlakis , Research Analyst at ABI Research. "Surveillance ...
(Date:3/14/2016)... -- NXTD ) ("NXT-ID" or the "Company"), a ... airing of a new series of commercials on Time Warner ... st .  The commercials will air on Bloomberg TV, Fox ... Street show. --> NXTD ) ("NXT-ID" or the ... announces the airing of a new series of commercials on ...
(Date:3/11/2016)... , March 11, 2016 ... new market research report "Image Recognition Market by Technology ... (Marketing and Advertising), by Deployment Type (On-Premises and Cloud), ... To 2022", published by MarketsandMarkets, the global market is ... to USD 29.98 Billion by 2020, at a CAGR ...
Breaking Biology News(10 mins):