Highlights

 

Laser fabricated micro-/nanostructures

Laser fabricated micro-/nanostructures
 

While others have used "Pulsed laser ablation in liquid" to produce nanoparticles for ten years, researchers at Rensselaer found for the first time that this approach could lead to more interesting structures.  It was surprising to find hollow spheres and nanowires in the products fabricated by pulsed laser ablation of an aluminum target immersed in liquid. This technique has been used by other researchers for ten years in producing nanoparticles, but such structures were never observed before. Later platinum hollow spheres and permalloy Easter eggs-hollow spheres containing non-aggregated nanoparticles-were also fabricated by the approach. These observations are exciting because hollow structures have increasing applications in catalysis, photonics, drug delivery, hydrogen storage, etc. Moreover, the magnetic Easter egg structures are expected to show unique quantum effects. Some of the experimental results have been published in Mater. Res. Soc. Symp. Proc., submitted to EMRS and are prepared to submit to Nano Letters. Now Prof. Chrisey's group are trying more materials to see whether the phenomena are universal, and studying to reveal the mechanisms underlying the phenomena.

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Highlight List

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Choose any of the highlights below to view more information and links.

Order of Magnitude Improvement in Fatigue Performance of Nanoscale Alumina Filled Epoxy
Order of Magnitude Improvement in Fatigue Performance of Nanoscale Alumina Filled Epoxy Novel nanoscale alumina particle filled epoxy nanocomposites were designed and developed for potential use in electrical machine insulation.  
Researchers discover method to induce, suppress branching of nanorods
Researchers discover method to induce, suppress branching of nanorods  A new technique for growing single-crystal nanorods and controlling their shape using biomolecules could enable the development of smaller, more powerful heat pumps and devices that harvest electricity from heat.   
New Study Links Heat Transfer, Bond Strength of Materials
New Study Links Heat Transfer, Bond Strength of Materials The study shows that this flow of heat from one material to another can be dramatically altered by “painting” a thin atomic layer between materials. Changing the interface fundamentally alters the way the materials interact.  
High efficiency, low cost fuel cells
High efficiency, low cost fuel cells Aligned nanostructures of carbon offer new promise as catalyst supports that minimize the amount of expensive precious metals required for the electrodes of next generation fuel cells.  
Crack Resistant Glass
Crack Resistant Glass There are two types of oxide glasses. Between these two types of glasses, there are intermediate glasses, whose properties do not change much with the cooling rate from the melts. These intermediate glasses were found highly crack-resistant.  
Photo/beta-voltaic Diodes
Photo/beta-voltaic Diodes Due to unique electronic properties and the unusual quality of self-healing of radiation damage, boron carbide based semiconductors have been fabricated to form photo/beta-voltaic diodes which can be used for power harvesting and sensing applications.  
Anisotropic self-assembly of spherical polymer-grafted nanoparticles
Anisotropic self-assembly of spherical polymer-grafted nanoparticles By attaching polymer brushes to spherical nanoparticles, nanoparticles orient into strings due to brush attachment.  
Photoactive acenes for organic photovoltaics (OPVs)
Photoactive acenes for organic photovoltaics (OPVs) By designing the interaction between metal substrates and the first layer of molecules, acenes can be packed in a face-to-face fashion instead of the conventional herringbone (face-to-edge) arrangement.  
Nanorockets Propelled by Catalytic Chemical Reactions
Nanorockets Propelled by Catalytic Chemical Reactions Rocket engines have been around for centuries and have carried humans to moon. The same propulsion principle is in fact applicable at the nanoscale. Nanostructures can propel themselves by burning the surround fuels, as shown by molecular simulations.  
 

To Find Out More Go To: http://www.eng.rpi.edu.eng

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Did you know?

Rensselaer's Department of Materials Science and Engineering...

  • one of the oldest materials departments in the country,
  • has consistently ranked among the top 15 Departments in the United States,
  • committed to the educational process, to individual mentoring, and to academic excellence,
  • offers many Undergraduate & Graduate courses in an interactive, hands-on format, and
  • provides opportunities for undergraduate research.

Materials Science and Engineering offers students a variety of hands-on design opportunities—even bridge design! See a sample project from Design in Materials Engineering (MTLE – 4910)