Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Nanoscale heat flow predictions: Heat flow in novel nanomaterials could help in creating environmentally friendly and cost-effective nanometric-scale energy devices

Snapshot of the final configuration of a nc-Si sample© Melis et al.
Snapshot of the final configuration of a nc-Si sample

© Melis et al.

Abstract:
Physicists are now designing novel materials with physical properties tailored to meet specific energy consumption needs. Before these so-called materials-by-design can be applied, it is essential to understand their characteristics, such as heat flow. Now, a team of Italian physicists has developed a predictive theoretical model for heat flux in these materials, using atom-scale calculations. The research, carried out by Claudio Melis and colleagues from the University of Cagliary, Italy, is published in EPJ B. Their findings could have implications for optimising the thermal budget of nanoelectronic devices—which means they could help dissipate the total amount of thermal energy generated by electron currents—or in the production of energy through thermoelectric effects in novel nanomaterials.

Nanoscale heat flow predictions: Heat flow in novel nanomaterials could help in creating environmentally friendly and cost-effective nanometric-scale energy devices

Heidelberg, Germany and New York, NY | Posted on May 7th, 2014

The authors relied on large-scale molecular dynamics simulations to investigate nanoscale thermal transport and determine the corresponding physical characteristics, which determine thermal conductivity. Traditional atomistic calculation methods involve a heavy computational workload, which sometimes prevents their application to systems large enough to model the experimental structural complexity of real samples.

Instead, Melis and colleagues adopted a method called approach equilibrium molecular dynamics (AEMD), which is robust and suitable for representing large systems. Thus, it can use simulations to deliver trustworthy predictions on thermal transport. The authors investigated the extent to which the reliability of the AEMD method results is affected by any implementation issues.

In addition, they applied the method to thermal transport in nanostructured silicon, a system of current interest with high potential impact on thermoelectric technology, using simulations of unprecedented size. Ultimately, the model could be applied to semiconductors used as high-efficiency thermoelectrics, and to graphene nanoribbons used as heat sinks for so-called ultra large scale integration devices, such as computer microprocessors.

####

For more information, please click here

Contacts:
Saskia Rohmer

49-622-148-78414

Copyright © Springer

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

Reference: C. Melis, R. Dettori, S. Vandermeulen and L. Colombo (2014), Calculating thermal conductivity in a transient conduction regime: theory and implementation, European Physical Journal B, DOI 10.1140/epjb/e2014-50119-0:

Related News Press

News and information

Fish-Inspired Material Changes Color Using Nanocolumns March 18th, 2019

New method to reduce uranium concentration in contaminated water March 18th, 2019

Converting biomass by applying mechanical force Nanoscientists discover new mechanism to cleave cellulose effectively and in an environmentally friendly way March 15th, 2019

Exotic “second sound” phenomenon observed in pencil lead: At relatively balmy temperatures, heat behaves like sound when moving through graphite, study reports March 15th, 2019

Quantum sensing method measures minuscule magnetic fields: MIT researchers find a new way to make nanoscale measurements of fields in more than one dimension March 15th, 2019

Physics

Exotic “second sound” phenomenon observed in pencil lead: At relatively balmy temperatures, heat behaves like sound when moving through graphite, study reports March 15th, 2019

Quantum sensing method measures minuscule magnetic fields: MIT researchers find a new way to make nanoscale measurements of fields in more than one dimension March 15th, 2019

Chip Technology

Exotic “second sound” phenomenon observed in pencil lead: At relatively balmy temperatures, heat behaves like sound when moving through graphite, study reports March 15th, 2019

Pushing Past Limits: Junkai Jiang receives prestigious Ph.D. Student Fellowship from IEEE Electron Devices Society March 14th, 2019

Nanometrics Announces $80 Million Share Repurchase Program March 14th, 2019

When semiconductors stick together, materials go quantum: A new study led by Berkeley Lab reveals how aligned layers of atomically thin semiconductors can yield an exotic new quantum material March 12th, 2019

Discoveries

Fish-Inspired Material Changes Color Using Nanocolumns March 18th, 2019

New method to reduce uranium concentration in contaminated water March 18th, 2019

Review of the recent advances of 2D nanomaterials in Lit-ion batteries March 15th, 2019

Converting biomass by applying mechanical force Nanoscientists discover new mechanism to cleave cellulose effectively and in an environmentally friendly way March 15th, 2019

Materials/Metamaterials

Converting biomass by applying mechanical force Nanoscientists discover new mechanism to cleave cellulose effectively and in an environmentally friendly way March 15th, 2019

Now made in Japan – Asian battery manufacturers welcome highly conductive nanotube additive March 7th, 2019

Can a flowing liquid-like material maintain its structural order like crystals? February 27th, 2019

Super-light, super-insulating ceramic aerogel keeps the hottest temperatures at bay February 17th, 2019

Announcements

Fish-Inspired Material Changes Color Using Nanocolumns March 18th, 2019

New method to reduce uranium concentration in contaminated water March 18th, 2019

Converting biomass by applying mechanical force Nanoscientists discover new mechanism to cleave cellulose effectively and in an environmentally friendly way March 15th, 2019

Exotic “second sound” phenomenon observed in pencil lead: At relatively balmy temperatures, heat behaves like sound when moving through graphite, study reports March 15th, 2019

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

Fish-Inspired Material Changes Color Using Nanocolumns March 18th, 2019

New method to reduce uranium concentration in contaminated water March 18th, 2019

Review of the recent advances of 2D nanomaterials in Lit-ion batteries March 15th, 2019

Converting biomass by applying mechanical force Nanoscientists discover new mechanism to cleave cellulose effectively and in an environmentally friendly way March 15th, 2019

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Review of the recent advances of 2D nanomaterials in Lit-ion batteries March 15th, 2019

Now made in Japan – Asian battery manufacturers welcome highly conductive nanotube additive March 7th, 2019

New blueprint for understanding, predicting and optimizing complex nanoparticles: Guidelines have the potential to transform the fields of optoelectronics, bio-imaging and energy harvesting March 1st, 2019

Researchers create ultra-lightweight ceramic material that withstands extreme temperatures: UCLA-led team develops highly durable aerogel that could ultimately be an upgrade for insulation on spacecraft February 15th, 2019

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project