Home > Press > Unzipping graphene nanotubes into nanoribbons: New study shows elegant mathematical solution to understand how the flow of electrons changes when carbon nanotubes turn into zigzag nanoribbons
 |
Abstract:
In a new study published in EPJ B, Basant Lal Sharma from the Indian Institute of Technology Kanpur provides a detailed analysis of how the flow of heat and electrons is affected at the interface between an 'armchair' shaped carbon nanotube and a zigzagging nanoribbon made up of a single-layer carbon honeycomb sheet of graphene. Applications of this method can help us understand the propagation of electrons and thermal flow in graphene and similar materials for electromagnetic devices. For example, a partially unzipped carbon nanotube could act as a device with varying electrical resistance depending on the strength of an external magnetic field applied to it. By contrast, these junctions can also act as perfect 'valley filters', allowing certain types of electrons through the junction with the maximum possible conductance, while other electrons can't pass through.
Unzipping graphene nanotubes into nanoribbons: New study shows elegant mathematical solution to understand how the flow of electrons changes when carbon nanotubes turn into zigzag nanoribbons
Heidelberg, Germany | Posted on June 6th, 2018In this study, the author relies on a highly simplified view of the physics involved in the problem of electron and heat flow at the junction, one which nevertheless retains the essence of the problem. To study the junction, the author removes a zigzag chain of carbon atoms from the edge of the nanoribbon so as to create a defect in the junction.
Unlike previous studies, this work resolves the complex problem of electron transport using a method that is mathematically elegant. The model describes the interactions between electrons and relies on a matching method to calculate the transmission properties of the electrons through the junction. A similar method was previously used to explain wave propagation in different kinds of materials, but had little connection to the applications of such electron flows, which involve modelling individual particles' flow.
The author was able to obtain results that very nearly matched the numerical results.
####
For more information, please click here
Contacts:
Sabine Lehr
49-622-148-78336
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:
| Related Links |
| Related News Press |
News and information
Quantum computer improves AI predictions April 17th, 2026
Flexible sensor gains sensitivity under pressure April 17th, 2026
A reusable chip for particulate matter sensing April 17th, 2026
Detecting vibrational quantum beating in the predissociation dynamics of SF6 using time-resolved photoelectron spectroscopy April 17th, 2026
2 Dimensional Materials
Flexible sensor gains sensitivity under pressure April 17th, 2026
Graphene/ Graphite
Electrifying results shed light on graphene foam as a potential material for lab grown cartilage June 6th, 2025
Breakthrough in proton barrier films using pore-free graphene oxide: Kumamoto University researchers achieve new milestone in advanced coating technologies September 13th, 2024
Possible Futures
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
Chip Technology
A reusable chip for particulate matter sensing April 17th, 2026
Metasurfaces smooth light to boost magnetic sensing precision January 30th, 2026
Nanotubes/Buckyballs/Fullerenes/Nanorods/Nanostrings/Nanosheets
Tiny nanosheets, big leap: A new sensor detects ethanol at ultra-low levels January 30th, 2026
Enhancing power factor of p- and n-type single-walled carbon nanotubes April 25th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Innovative biomimetic superhydrophobic coating combines repair and buffering properties for superior anti-erosion December 13th, 2024
Discoveries
Quantum computer improves AI predictions April 17th, 2026
Flexible sensor gains sensitivity under pressure April 17th, 2026
A reusable chip for particulate matter sensing April 17th, 2026
Detecting vibrational quantum beating in the predissociation dynamics of SF6 using time-resolved photoelectron spectroscopy April 17th, 2026
Materials/Metamaterials/Magnetoresistance
First real-time observation of two-dimensional melting process: Researchers at Mainz University unveil new insights into magnetic vortex structures August 8th, 2025
Researchers unveil a groundbreaking clay-based solution to capture carbon dioxide and combat climate change June 6th, 2025
A 1960s idea inspires NBI researchers to study hitherto inaccessible quantum states June 6th, 2025
Institute for Nanoscience hosts annual proposal planning meeting May 16th, 2025
Announcements
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||