Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes
Many electronic applications of single-walled carbon nanotubes (SWNTs) require electronic homogeneity in order to maximally exploit their outstanding properties. Non-covalent separation is attractive as it is scalable and results in minimal alteration of nanotube properties. However, fundamental und...
Saved in:
Main Authors: | , , , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/102110 http://hdl.handle.net/10220/18942 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-102110 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1021102020-03-07T11:35:23Z Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes Thong, Ya Xuan Poon, Yin Fun Chen, Tzu-Yin Li, Lain-Jong Chan-Park, Mary B. School of Chemical and Biomedical Engineering Chemical and Biomedical Engineering Many electronic applications of single-walled carbon nanotubes (SWNTs) require electronic homogeneity in order to maximally exploit their outstanding properties. Non-covalent separation is attractive as it is scalable and results in minimal alteration of nanotube properties. However, fundamental understanding of the metallicity-dependence of functional group interactions with nanotubes is still lacking; this lack is compounded by the absence of methods to directly measure these interactions. Herein, a novel technology platform based on a recently developed atomic force microscopy (AFM) mode is reported which directly quantifies the adhesion forces between a chosen functional group and individual nanotubes of known metallicity, permitting comparisons between different metallicity. These results unambiguously show that this technology platform is able to discriminate the subtle adhesion force differences of a chosen functional group with pure metallic as opposed to pure semiconducting nanotubes. This new method provides a route towards rapid advances in understanding of non-covalent interactions of large libraries of compounds with nanotubes of varying metallicity and diameter; presenting a superior tool to assist the discovery of more effective metallicity-based SWNT separation agents. 2014-03-21T07:04:30Z 2019-12-06T20:49:53Z 2014-03-21T07:04:30Z 2019-12-06T20:49:53Z 2013 2013 Journal Article Thong, Y. X., Poon, Y. F., Chen, T.-Y., Li, L.-J., & Chan-Park, M. B. (2014). Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes. Small, 10(4), 750-757. 1613-6810 https://hdl.handle.net/10356/102110 http://hdl.handle.net/10220/18942 10.1002/smll.201302084 en Small © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
institution |
Nanyang Technological University |
building |
NTU Library |
country |
Singapore |
collection |
DR-NTU |
language |
English |
topic |
Chemical and Biomedical Engineering |
spellingShingle |
Chemical and Biomedical Engineering Thong, Ya Xuan Poon, Yin Fun Chen, Tzu-Yin Li, Lain-Jong Chan-Park, Mary B. Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
description |
Many electronic applications of single-walled carbon nanotubes (SWNTs) require electronic homogeneity in order to maximally exploit their outstanding properties. Non-covalent separation is attractive as it is scalable and results in minimal alteration of nanotube properties. However, fundamental understanding of the metallicity-dependence of functional group interactions with nanotubes is still lacking; this lack is compounded by the absence of methods to directly measure these interactions. Herein, a novel technology platform based on a recently developed atomic force microscopy (AFM) mode is reported which directly quantifies the adhesion forces between a chosen functional group and individual nanotubes of known metallicity, permitting comparisons between different metallicity. These results unambiguously show that this technology platform is able to discriminate the subtle adhesion force differences of a chosen functional group with pure metallic as opposed to pure semiconducting nanotubes. This new method provides a route towards rapid advances in understanding of non-covalent interactions of large libraries of compounds with nanotubes of varying metallicity and diameter; presenting a superior tool to assist the discovery of more effective metallicity-based SWNT separation agents. |
author2 |
School of Chemical and Biomedical Engineering |
author_facet |
School of Chemical and Biomedical Engineering Thong, Ya Xuan Poon, Yin Fun Chen, Tzu-Yin Li, Lain-Jong Chan-Park, Mary B. |
format |
Article |
author |
Thong, Ya Xuan Poon, Yin Fun Chen, Tzu-Yin Li, Lain-Jong Chan-Park, Mary B. |
author_sort |
Thong, Ya Xuan |
title |
Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
title_short |
Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
title_full |
Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
title_fullStr |
Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
title_full_unstemmed |
Direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
title_sort |
direct intermolecular force measurements between functional groups and individual metallic or semiconducting single-walled carbon nanotubes |
publishDate |
2014 |
url |
https://hdl.handle.net/10356/102110 http://hdl.handle.net/10220/18942 |
_version_ |
1681040140824215552 |