dc.contributor.author | Chen, Genyu | |
dc.contributor.author | Shrestha, Rabi | |
dc.contributor.author | Jukna, Artūras | |
dc.contributor.author | Koroliov, Anton | |
dc.contributor.author | Richter, Christiaan | |
dc.contributor.author | Sobolewski, Roman | |
dc.date.accessioned | 2023-09-18T16:59:24Z | |
dc.date.available | 2023-09-18T16:59:24Z | |
dc.date.issued | 2017 | |
dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/118509 | |
dc.description.abstract | Carbon nanotubes and graphene show potential in commercial application due to their extreme mechanical, and electrical properties. This work deals with analysis of single-walled carbon nanotubes (SWCNT with a chiral index of 7,5) wrapped in poly 9, 9-di-n-octylfluorenyl-2, 7-diyl (PFO) in a toluene solution, in a thin film sample and graphene flakes embedded in PET ((polyethylene terephthalate) with 1 % graphene content). In this study, a nondestructive THz time-domain spectroscopy (THz-TDS) method utilizing the emission and detection of coherent and linearly polarized THz waves were used for characterization of the index of refraction, the optical absorption, electric permittivity and conductivity of mentioned forms of carbon in wide range 0.1 ÷ 3.5 THz frequencies. Our experimental results show that the most intensive optical absorption in SWCNT liquid and thin film samples as well as in graphene flakes appears to be at frequencies higher than 2 THz and varies in different forms of carbon bonding. Our calculated the real and imaginary parts of the electric conductivity and their dependences on frequency of incident THz wave can be also explained by different carbon bonding in our tested samples. All experimental results are presented and discussed. | eng |
dc.format.extent | p. 123 | |
dc.format.medium | tekstas / txt | |
dc.language.iso | eng | |
dc.source.uri | https://talpykla.elaba.lt/elaba-fedora/objects/elaba:24011695/datastreams/COVER/content | |
dc.source.uri | https://talpykla.elaba.lt/elaba-fedora/objects/elaba:24011695/datastreams/ATTACHMENT_24011977/content | |
dc.subject | FM02 - Energijos šaltinių medžiagos ir technologijos / Materials and technologies of energy sources | |
dc.title | THz time-domain spectroscopy characterization of carbon nanostructures | |
dc.type | Kitos konferencijų pranešimų santraukos / Other conference presentation abstracts | |
dcterms.references | 1 | |
dc.type.pubtype | T3 - Kitos konferencijos pranešimo tezės / Other conference presentation abstracts | |
dc.contributor.institution | University of Rochester | |
dc.contributor.institution | Vilniaus Gedimino technikos universitetas University of Rochester | |
dc.contributor.institution | Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras University of Rochester | |
dc.contributor.institution | Rochester Institute of Technology | |
dc.contributor.faculty | Fundamentinių mokslų fakultetas / Faculty of Fundamental Sciences | |
dc.subject.researchfield | N 002 - Fizika / Physics | |
dc.subject.researchfield | T 008 - Medžiagų inžinerija / Material engineering | |
dc.subject.ltspecializations | L104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies | |
dc.subject.en | Carbon nanotubes | |
dc.subject.en | Graphene | |
dc.subject.en | Polymer | |
dc.subject.en | THz time-domain | |
dc.subject.en | Optical absorption | |
dc.subject.en | Electric conductivity | |
dc.subject.en | Carbon bonding | |
dcterms.sourcetitle | EDISON20. The 20th International Conference on Electron Dynamics in Semiconductos, Optoelectronics and Nanostructures, Buffalo, NY/July 16-21, 2017 | |
dc.publisher.name | University at Buffalo | |
dc.publisher.city | New York | |
dc.identifier.elaba | 24011695 | |