Publication
Title
Quasiphase transition in a single file of water molecules encapsulated in (6,5) carbon nanotubes observed by temperature-dependent photoluminescence spectroscopy
Author
Abstract
Molecules confined inside single-walled carbon nanotubes (SWCNTs) behave quite differently from their bulk analogues. In this Letter we present temperature-dependent (4.2 K up to room temperature) photoluminescence (PL) spectra of water-filled and empty single-chirality (6,5) SWCNTs. Superimposed on a linear temperature-dependent PL spectral shift of the empty SWCNTs, an additional stepwise PL spectral shift of the water-filled SWCNTs is observed at ∼150 K. With the empty SWCNTs serving as an ideal reference system, we assign this shift to temperature-induced changes occurring in the single-file chain of water molecules encapsulated in the tubes. Our molecular dynamics simulations further support the occurrence of a quasiphase transition of the orientational order of the water dipoles in the single-file chain.
Language
English
Source (journal)
Physical review letters. - New York, N.Y., 1958, currens
Publication
New York, N.Y. : American Physical Society , 2017
ISSN
0031-9007 [print]
1079-7114 [online]
DOI
10.1103/PHYSREVLETT.118.027402
Volume/pages
118 :2 (2017) , 7 p.
Article Reference
027402
ISI
000391927700011
Pubmed ID
28128601
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Order in one dimension: Functional hybrids of chiralitysorted carbon nanotubes (ORDERin1D).
Separation and high-resolution spectroscopic characterisation of carbon nanotubes and nanocomposites.
Separation, sorting and enhanced optical properties of intact carbon nanotubes and their composites.
Imaging and advanced spectroscopy of individual carbon nanotubes by IR fluorescence microscopy.
Functional Hybrids of Carbon Nanotubes
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 16.01.2017
Last edited 02.10.2024
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