Park, Young Ran Kim, Woo-Jae Ko, Min Jae Min, Nam Ki Lee, Cheol Jin 2024-01-20T14:01:40Z 2024-01-20T14:01:40Z 2021-09-04 2012-10 2040-3364 https://pubs.kist.re.kr/handle/201004/128846 The ultraviolet optical properties of semiconducting-enriched and metallic-enriched single-walled carbon nanotube (semi-enriched and m-enriched SWCNT) networks were studied using spectroscopic ellipsometry. According to calculated energy loss function, the energy loss peak assigned to the maximum intensity of p-plasmon energy was found to increase from 4.5 eV to 5.0 eV as SWCNT network composition was changed from m-SWCNT enriched to semi-SWCNT enriched. These results clearly demonstrate that the dielectric response in the 4-6 eV range is sensitive to changes in the surrounding dielectric environment depending on the semi-/m-SWCNT content. Therefore, the spectral shift of this energy loss is attributed to the enhanced electron confinement by the presence of the surface plasmon due to a small amount of m-SWCNT, which is an important phenomenon at the SWCNT network. English ROYAL SOC CHEMISTRY ELECTRONIC-STRUCTURE SEPARATION Investigation of ultraviolet optical properties of semiconducting-enriched and metal-enriched single-walled carbon nanotube networks using spectroscopic ellipsometry Article 10.1039/c2nr31205k 1 NANOSCALE, v.4, no.20, pp.6532 - 6536 NANOSCALE 4 20 6532 6536 scie scopus 000310976800053 2-s2.0-84866974487 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article ELECTRONIC-STRUCTURE SEPARATION Optical Properties Carbon Nanotube Elipsometry