Intermolecular vibrational energy transfer between SWCNTs with different chiralities

Nishant Kumar Pathak; Yui Konno; Ying Kuan Ko; Yutaka Maeda; Takayoshi Kobayashi; Atsushi Yabushita; Bhaskar Kanseri

doi:10.1016/j.chemphys.2022.111759

Intermolecular vibrational energy transfer between SWCNTs with different chiralities

Nishant Kumar Pathak, Yui Konno, Ying Kuan Ko, Yutaka Maeda, Takayoshi Kobayashi, Atsushi Yabushita^*, Bhaskar Kanseri

^*Corresponding author for this work

Department of Electrophysics

Research output: Contribution to journal › Article › peer-review

Abstract

Ultrafast spectroscopy was performed for two kinds of SWCNT samples; a sample purified to have a single chirality (purified) and one containing variety of chiralities (non-purified). There are three relaxation processes with corresponding rates which were estimated as 10ps^-1,2ps^-1,and0.5ps^-1. The fastest rate is attributed to intraband relaxation in the electronic excited state, and the other two are for parallel relaxation process of interband relaxation to the electronic ground state. Vibrational frequency of radial breathing mode was found to show up-shift only in the non-purified sample (not in the purified one), which indicates intermolecular vibrational energy transfer between SWCNTs with different chiralities from each other.

Original language	English
Article number	111759
Journal	Chemical Physics
Volume	565
DOIs	https://doi.org/10.1016/j.chemphys.2022.111759
State	Published - 15 Jan 2023

Keywords

Electronic relaxation
SWCNT
Transient absorption spectroscopy
Ultrashort pulse laser
Vibrational dynamics

Access to Document

10.1016/j.chemphys.2022.111759

Cite this

@article{6d76e1bee7ce4e8c80edfd625c04a907,

title = "Intermolecular vibrational energy transfer between SWCNTs with different chiralities",

abstract = "Ultrafast spectroscopy was performed for two kinds of SWCNT samples; a sample purified to have a single chirality (purified) and one containing variety of chiralities (non-purified). There are three relaxation processes with corresponding rates which were estimated as 10ps-1,2ps-1,and0.5ps-1. The fastest rate is attributed to intraband relaxation in the electronic excited state, and the other two are for parallel relaxation process of interband relaxation to the electronic ground state. Vibrational frequency of radial breathing mode was found to show up-shift only in the non-purified sample (not in the purified one), which indicates intermolecular vibrational energy transfer between SWCNTs with different chiralities from each other.",

keywords = "Electronic relaxation, SWCNT, Transient absorption spectroscopy, Ultrashort pulse laser, Vibrational dynamics",

author = "{Kumar Pathak}, Nishant and Yui Konno and {Kuan Ko}, Ying and Yutaka Maeda and Takayoshi Kobayashi and Atsushi Yabushita and Bhaskar Kanseri",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

month = jan,

day = "15",

doi = "10.1016/j.chemphys.2022.111759",

language = "English",

volume = "565",

journal = "Chemical Physics",

issn = "0301-0104",

publisher = "Elsevier",

}

TY - JOUR

T1 - Intermolecular vibrational energy transfer between SWCNTs with different chiralities

AU - Kumar Pathak, Nishant

AU - Konno, Yui

AU - Kuan Ko, Ying

AU - Maeda, Yutaka

AU - Kobayashi, Takayoshi

AU - Yabushita, Atsushi

AU - Kanseri, Bhaskar

PY - 2023/1/15

Y1 - 2023/1/15

N2 - Ultrafast spectroscopy was performed for two kinds of SWCNT samples; a sample purified to have a single chirality (purified) and one containing variety of chiralities (non-purified). There are three relaxation processes with corresponding rates which were estimated as 10ps-1,2ps-1,and0.5ps-1. The fastest rate is attributed to intraband relaxation in the electronic excited state, and the other two are for parallel relaxation process of interband relaxation to the electronic ground state. Vibrational frequency of radial breathing mode was found to show up-shift only in the non-purified sample (not in the purified one), which indicates intermolecular vibrational energy transfer between SWCNTs with different chiralities from each other.

AB - Ultrafast spectroscopy was performed for two kinds of SWCNT samples; a sample purified to have a single chirality (purified) and one containing variety of chiralities (non-purified). There are three relaxation processes with corresponding rates which were estimated as 10ps-1,2ps-1,and0.5ps-1. The fastest rate is attributed to intraband relaxation in the electronic excited state, and the other two are for parallel relaxation process of interband relaxation to the electronic ground state. Vibrational frequency of radial breathing mode was found to show up-shift only in the non-purified sample (not in the purified one), which indicates intermolecular vibrational energy transfer between SWCNTs with different chiralities from each other.

KW - Electronic relaxation

KW - SWCNT

KW - Transient absorption spectroscopy

KW - Ultrashort pulse laser

KW - Vibrational dynamics

UR - http://www.scopus.com/inward/record.url?scp=85141539835&partnerID=8YFLogxK

U2 - 10.1016/j.chemphys.2022.111759

DO - 10.1016/j.chemphys.2022.111759

M3 - Article

AN - SCOPUS:85141539835

SN - 0301-0104

VL - 565

JO - Chemical Physics

JF - Chemical Physics

M1 - 111759

ER -

Intermolecular vibrational energy transfer between SWCNTs with different chiralities

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this