Anchoring zinc oxide quantum dots on functionalized multi-walled carbon nanotubes by covalent coupling

Na Zhang; Jing Sun; Danyu Jiang; Tao Feng; Qiang Li

doi:10.1016/j.carbon.2008.12.044

Anchoring zinc oxide quantum dots on functionalized multi-walled carbon nanotubes by covalent coupling

Na Zhang
, Jing Sun
, Danyu Jiang
, Tao Feng
, Qiang Li^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

37 Scopus citations

Abstract

ZnO quantum dots (QDs) are anchored on multi-walled carbon nanotubes (MWCNTs) by a wet chemical self-assembling technique. The structure and properties of QDs/MWCNTs are also studied in detail. First, MWCNTs are functionalized with thiol by a series of chemical reactions. Fourier transform infrared spectroscopy is used to verify changes of chemical bonds on MWCNTs. At one time, quantum dots of ZnO alcogel are prepared by a sol-gel process. Finally, the functionalized MWCNTs (f-MWCNTs) are added into ZnO alcogels under ultrasonic condition or being magnetically stirred, and ZnO QDs/f-MWCNT composite is obtained by a self-assembling technique. A typical transmission electron microscopy image of the as-received ZnO QDs/f-MWCNT composite reveals that monodispersed ZnO QDs are anchored stably on functionalized MWCNTs. Moreover, photoluminescence spectrum and current-voltage curves display the special optoelectronic properties of this ZnO QDs/f-MWCNT hybrid. Crown

Original language	English
Pages (from-to)	1214-1219
Number of pages	6
Journal	Carbon
Volume	47
Issue number	5
DOIs	https://doi.org/10.1016/j.carbon.2008.12.044
State	Published - Apr 2009

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title = "Anchoring zinc oxide quantum dots on functionalized multi-walled carbon nanotubes by covalent coupling",

abstract = "ZnO quantum dots (QDs) are anchored on multi-walled carbon nanotubes (MWCNTs) by a wet chemical self-assembling technique. The structure and properties of QDs/MWCNTs are also studied in detail. First, MWCNTs are functionalized with thiol by a series of chemical reactions. Fourier transform infrared spectroscopy is used to verify changes of chemical bonds on MWCNTs. At one time, quantum dots of ZnO alcogel are prepared by a sol-gel process. Finally, the functionalized MWCNTs (f-MWCNTs) are added into ZnO alcogels under ultrasonic condition or being magnetically stirred, and ZnO QDs/f-MWCNT composite is obtained by a self-assembling technique. A typical transmission electron microscopy image of the as-received ZnO QDs/f-MWCNT composite reveals that monodispersed ZnO QDs are anchored stably on functionalized MWCNTs. Moreover, photoluminescence spectrum and current-voltage curves display the special optoelectronic properties of this ZnO QDs/f-MWCNT hybrid. Crown",

author = "Na Zhang and Jing Sun and Danyu Jiang and Tao Feng and Qiang Li",

year = "2009",

month = apr,

doi = "10.1016/j.carbon.2008.12.044",

language = "英语",

volume = "47",

pages = "1214--1219",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Ltd",

number = "5",

}

TY - JOUR

T1 - Anchoring zinc oxide quantum dots on functionalized multi-walled carbon nanotubes by covalent coupling

AU - Zhang, Na

AU - Sun, Jing

AU - Jiang, Danyu

AU - Feng, Tao

AU - Li, Qiang

PY - 2009/4

Y1 - 2009/4

N2 - ZnO quantum dots (QDs) are anchored on multi-walled carbon nanotubes (MWCNTs) by a wet chemical self-assembling technique. The structure and properties of QDs/MWCNTs are also studied in detail. First, MWCNTs are functionalized with thiol by a series of chemical reactions. Fourier transform infrared spectroscopy is used to verify changes of chemical bonds on MWCNTs. At one time, quantum dots of ZnO alcogel are prepared by a sol-gel process. Finally, the functionalized MWCNTs (f-MWCNTs) are added into ZnO alcogels under ultrasonic condition or being magnetically stirred, and ZnO QDs/f-MWCNT composite is obtained by a self-assembling technique. A typical transmission electron microscopy image of the as-received ZnO QDs/f-MWCNT composite reveals that monodispersed ZnO QDs are anchored stably on functionalized MWCNTs. Moreover, photoluminescence spectrum and current-voltage curves display the special optoelectronic properties of this ZnO QDs/f-MWCNT hybrid. Crown

AB - ZnO quantum dots (QDs) are anchored on multi-walled carbon nanotubes (MWCNTs) by a wet chemical self-assembling technique. The structure and properties of QDs/MWCNTs are also studied in detail. First, MWCNTs are functionalized with thiol by a series of chemical reactions. Fourier transform infrared spectroscopy is used to verify changes of chemical bonds on MWCNTs. At one time, quantum dots of ZnO alcogel are prepared by a sol-gel process. Finally, the functionalized MWCNTs (f-MWCNTs) are added into ZnO alcogels under ultrasonic condition or being magnetically stirred, and ZnO QDs/f-MWCNT composite is obtained by a self-assembling technique. A typical transmission electron microscopy image of the as-received ZnO QDs/f-MWCNT composite reveals that monodispersed ZnO QDs are anchored stably on functionalized MWCNTs. Moreover, photoluminescence spectrum and current-voltage curves display the special optoelectronic properties of this ZnO QDs/f-MWCNT hybrid. Crown

UR - https://www.scopus.com/pages/publications/61649119610

U2 - 10.1016/j.carbon.2008.12.044

DO - 10.1016/j.carbon.2008.12.044

M3 - 文章

AN - SCOPUS:61649119610

SN - 0008-6223

VL - 47

SP - 1214

EP - 1219

JO - Carbon

JF - Carbon

IS - 5

ER -

Anchoring zinc oxide quantum dots on functionalized multi-walled carbon nanotubes by covalent coupling

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