Phonon energy transfer in graphene–photoacid hybrids

Three water-soluble pyrene derivatives, i.e., 1-pyrenesulfonic acid sodium salt (PAS), 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (HPTS), and 6,8-dihydroxy-1,3-pyrenedisulfonic acid disodium salt (DHPDS), were employed in noncovalent functionalization of graphene. The phonon coupling inte...

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Main Authors: Pan, Xiaoyong, Li, Hao, Nguyen, Kim Truc, Grüner, George, Zhao, Yanli
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/99166
http://hdl.handle.net/10220/17201
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-991662020-06-01T10:21:16Z Phonon energy transfer in graphene–photoacid hybrids Pan, Xiaoyong Li, Hao Nguyen, Kim Truc Grüner, George Zhao, Yanli School of Materials Science & Engineering School of Physical and Mathematical Sciences DRNTU::Science::Chemistry::Physical chemistry Three water-soluble pyrene derivatives, i.e., 1-pyrenesulfonic acid sodium salt (PAS), 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (HPTS), and 6,8-dihydroxy-1,3-pyrenedisulfonic acid disodium salt (DHPDS), were employed in noncovalent functionalization of graphene. The phonon coupling interaction between the HPTS and DHPDS photoacids and graphene was demonstrated by UV–vis and photoluminescence spectroscopies, and the proposed mechanism of the phonon transfer was verified by temperature-dependent absorption spectroscopy. Graphene plays the role as a modulator in these graphene/photoacid hybrid systems, which switches the equilibrium between different species of the photoacids. Current work presents the pioneering investigation of phonon coupling (phonon energy transfer) in the graphene–photoacid systems. 2013-11-01T02:17:12Z 2019-12-06T20:04:04Z 2013-11-01T02:17:12Z 2019-12-06T20:04:04Z 2012 2012 Journal Article Pan, X., Li, H., Nguyen, K. T., Grüner, G., & Zhao, Y. (2012). Phonon energy transfer in graphene–photoacid hybrids. The journal of physical chemistry C, 116(6), 4175-4181. https://hdl.handle.net/10356/99166 http://hdl.handle.net/10220/17201 10.1021/jp2109016 en The journal of physical chemistry C
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Chemistry::Physical chemistry
spellingShingle DRNTU::Science::Chemistry::Physical chemistry
Pan, Xiaoyong
Li, Hao
Nguyen, Kim Truc
Grüner, George
Zhao, Yanli
Phonon energy transfer in graphene–photoacid hybrids
description Three water-soluble pyrene derivatives, i.e., 1-pyrenesulfonic acid sodium salt (PAS), 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (HPTS), and 6,8-dihydroxy-1,3-pyrenedisulfonic acid disodium salt (DHPDS), were employed in noncovalent functionalization of graphene. The phonon coupling interaction between the HPTS and DHPDS photoacids and graphene was demonstrated by UV–vis and photoluminescence spectroscopies, and the proposed mechanism of the phonon transfer was verified by temperature-dependent absorption spectroscopy. Graphene plays the role as a modulator in these graphene/photoacid hybrid systems, which switches the equilibrium between different species of the photoacids. Current work presents the pioneering investigation of phonon coupling (phonon energy transfer) in the graphene–photoacid systems.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Pan, Xiaoyong
Li, Hao
Nguyen, Kim Truc
Grüner, George
Zhao, Yanli
format Article
author Pan, Xiaoyong
Li, Hao
Nguyen, Kim Truc
Grüner, George
Zhao, Yanli
author_sort Pan, Xiaoyong
title Phonon energy transfer in graphene–photoacid hybrids
title_short Phonon energy transfer in graphene–photoacid hybrids
title_full Phonon energy transfer in graphene–photoacid hybrids
title_fullStr Phonon energy transfer in graphene–photoacid hybrids
title_full_unstemmed Phonon energy transfer in graphene–photoacid hybrids
title_sort phonon energy transfer in graphene–photoacid hybrids
publishDate 2013
url https://hdl.handle.net/10356/99166
http://hdl.handle.net/10220/17201
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