Interacting Phonons between Layers in Raman Spectra of Carbon Nanotubes inside Boron Nitride Nanotubes

Desman Perdamaian Gulo; Nguyen Tuan Hung; Wei Liang Chen; Shuhui Wang; Ming Liu; Esko I. Kauppinen; Shigeo Maruyama; Yu Ming Chang; Riichiro Saito; Hsiang Lin Liu

doi:10.1021/acs.jpclett.3c02528

Interacting Phonons between Layers in Raman Spectra of Carbon Nanotubes inside Boron Nitride Nanotubes

Desman Perdamaian Gulo, Nguyen Tuan Hung, Wei Liang Chen, Shuhui Wang, Ming Liu, Esko I. Kauppinen, Shigeo Maruyama, Yu Ming Chang, Riichiro Saito, Hsiang Lin Liu^*

^*Corresponding author for this work

Department of Physics

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

4 Citations (Scopus)

Abstract

We present the resonant Raman spectra of a single-wall carbon nanotube inside a multiwall boron nitride nanotube (SWNT@BNNT). At E_L = 1.58 eV, SWNT@BNNT exhibited resonant Raman spectra at 807 (ω_BN) and 804 cm^-1 (ω_Gr). Their intensities almost disappeared at E_L = 2.33 eV. We assigned ω_BN to the out-of-plane BN phonon mode that coupled with ω_Gr. At E_L = 4.66 eV, the G⁺ and G^- bands of the SWNT@BNNT red-shifted 3.8 cm^-1 compared with the SWNT, suggesting the interwall interactions between the in-plane modes of SWNT and BNNT. Moreover, the E_2g mode of the BNNT in SWNT@BNNT appeared at 1370.3 ± 0.1 cm^-1, which is undistinguishable for E_L < 3 eV because of the overlap with the D band frequency. The assignment of the present Raman spectra was confirmed through the first-principles calculations.

Original language	English
Pages (from-to)	10263-10270
Number of pages	8
Journal	Journal of Physical Chemistry Letters
Volume	14
Issue number	45
DOIs	https://doi.org/10.1021/acs.jpclett.3c02528
Publication status	Published - 2023 Nov 16

ASJC Scopus subject areas

General Materials Science
Physical and Theoretical Chemistry

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10.1021/acs.jpclett.3c02528

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title = "Interacting Phonons between Layers in Raman Spectra of Carbon Nanotubes inside Boron Nitride Nanotubes",

abstract = "We present the resonant Raman spectra of a single-wall carbon nanotube inside a multiwall boron nitride nanotube (SWNT@BNNT). At EL = 1.58 eV, SWNT@BNNT exhibited resonant Raman spectra at 807 (ωBN) and 804 cm-1 (ωGr). Their intensities almost disappeared at EL = 2.33 eV. We assigned ωBN to the out-of-plane BN phonon mode that coupled with ωGr. At EL = 4.66 eV, the G+ and G- bands of the SWNT@BNNT red-shifted 3.8 cm-1 compared with the SWNT, suggesting the interwall interactions between the in-plane modes of SWNT and BNNT. Moreover, the E2g mode of the BNNT in SWNT@BNNT appeared at 1370.3 ± 0.1 cm-1, which is undistinguishable for EL < 3 eV because of the overlap with the D band frequency. The assignment of the present Raman spectra was confirmed through the first-principles calculations.",

author = "Gulo, {Desman Perdamaian} and Hung, {Nguyen Tuan} and Chen, {Wei Liang} and Shuhui Wang and Ming Liu and Kauppinen, {Esko I.} and Shigeo Maruyama and Chang, {Yu Ming} and Riichiro Saito and Liu, {Hsiang Lin}",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = nov,

day = "16",

doi = "10.1021/acs.jpclett.3c02528",

language = "English",

volume = "14",

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T1 - Interacting Phonons between Layers in Raman Spectra of Carbon Nanotubes inside Boron Nitride Nanotubes

AU - Gulo, Desman Perdamaian

AU - Hung, Nguyen Tuan

AU - Chen, Wei Liang

AU - Wang, Shuhui

AU - Liu, Ming

AU - Kauppinen, Esko I.

AU - Maruyama, Shigeo

AU - Chang, Yu Ming

AU - Saito, Riichiro

AU - Liu, Hsiang Lin

PY - 2023/11/16

Y1 - 2023/11/16

N2 - We present the resonant Raman spectra of a single-wall carbon nanotube inside a multiwall boron nitride nanotube (SWNT@BNNT). At EL = 1.58 eV, SWNT@BNNT exhibited resonant Raman spectra at 807 (ωBN) and 804 cm-1 (ωGr). Their intensities almost disappeared at EL = 2.33 eV. We assigned ωBN to the out-of-plane BN phonon mode that coupled with ωGr. At EL = 4.66 eV, the G+ and G- bands of the SWNT@BNNT red-shifted 3.8 cm-1 compared with the SWNT, suggesting the interwall interactions between the in-plane modes of SWNT and BNNT. Moreover, the E2g mode of the BNNT in SWNT@BNNT appeared at 1370.3 ± 0.1 cm-1, which is undistinguishable for EL < 3 eV because of the overlap with the D band frequency. The assignment of the present Raman spectra was confirmed through the first-principles calculations.

AB - We present the resonant Raman spectra of a single-wall carbon nanotube inside a multiwall boron nitride nanotube (SWNT@BNNT). At EL = 1.58 eV, SWNT@BNNT exhibited resonant Raman spectra at 807 (ωBN) and 804 cm-1 (ωGr). Their intensities almost disappeared at EL = 2.33 eV. We assigned ωBN to the out-of-plane BN phonon mode that coupled with ωGr. At EL = 4.66 eV, the G+ and G- bands of the SWNT@BNNT red-shifted 3.8 cm-1 compared with the SWNT, suggesting the interwall interactions between the in-plane modes of SWNT and BNNT. Moreover, the E2g mode of the BNNT in SWNT@BNNT appeared at 1370.3 ± 0.1 cm-1, which is undistinguishable for EL < 3 eV because of the overlap with the D band frequency. The assignment of the present Raman spectra was confirmed through the first-principles calculations.

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Interacting Phonons between Layers in Raman Spectra of Carbon Nanotubes inside Boron Nitride Nanotubes

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