Copper oxide nanorods assembly and their whisker transformation at liquid-liquid interface and on solid surfaces

Salim H. Al-Harthi; Hisham M. Widatallah; Ashraf T. Al-Hinai; Mohamed E. Elzain; Hidetoshi Nishiyama; Myo Tay Zar Myint

doi:10.1016/j.jcrysgro.2014.01.005

Copper oxide nanorods assembly and their whisker transformation at liquid-liquid interface and on solid surfaces

Salim H. Al-Harthi^*, Hisham M. Widatallah, Ashraf T. Al-Hinai, Mohamed E. Elzain, Hidetoshi Nishiyama, Myo Tay Zar Myint

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

We report on real time fluctuations and chain-like assemblies of copper oxide (CuO) nanorods at the liquid-liquid interface. The rods were found to transform into whiskers and 3D structures upon spin-casting on silicon substrates. The results of atmospheric scanning electron microscope (ASEM) and atomic force microscopy (AFM) provide compelling evidence that both the transformation and the assembly are driven by interaction between the π electrons of toluene and CuO nanorods, and to a smaller extent by breath figure dynamics rather than the solution-liquid-solid mechanism that was previously believed to account for whisker formation. These results open up a way for studying and understanding the dynamics of nanoparticles at liquid-liquid interfaces.

Original language	English
Pages (from-to)	41-48
Number of pages	8
Journal	Journal of Crystal Growth
Volume	392
DOIs	https://doi.org/10.1016/j.jcrysgro.2014.01.005
Publication status	Published - Apr 15 2014

Keywords

A1. Assembly
A1. Dynamics
A1. Interface
A1. Nanorod
A1. Whisker
B1. Copper oxide

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jcrysgro.2014.01.005

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title = "Copper oxide nanorods assembly and their whisker transformation at liquid-liquid interface and on solid surfaces",

abstract = "We report on real time fluctuations and chain-like assemblies of copper oxide (CuO) nanorods at the liquid-liquid interface. The rods were found to transform into whiskers and 3D structures upon spin-casting on silicon substrates. The results of atmospheric scanning electron microscope (ASEM) and atomic force microscopy (AFM) provide compelling evidence that both the transformation and the assembly are driven by interaction between the π electrons of toluene and CuO nanorods, and to a smaller extent by breath figure dynamics rather than the solution-liquid-solid mechanism that was previously believed to account for whisker formation. These results open up a way for studying and understanding the dynamics of nanoparticles at liquid-liquid interfaces.",

keywords = "A1. Assembly, A1. Dynamics, A1. Interface, A1. Nanorod, A1. Whisker, B1. Copper oxide",

author = "Al-Harthi, {Salim H.} and Widatallah, {Hisham M.} and Al-Hinai, {Ashraf T.} and Elzain, {Mohamed E.} and Hidetoshi Nishiyama and Myint, {Myo Tay Zar}",

note = "Funding Information: The authors acknowledge the support of Dr. Issa Al-amri from the Electron Microscopy Unit, College of Medicine and Health Sciences, Sultan Qaboos University for the TEM imaging and the Advanced Technology Division, JEOL Ltd, Japan for using ASEM instrument. Authors would like to acknowledge M. Al-Bahri and K.P Revathy for sample preparation. ",

year = "2014",

month = apr,

day = "15",

doi = "10.1016/j.jcrysgro.2014.01.005",

language = "English",

volume = "392",

pages = "41--48",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

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TY - JOUR

T1 - Copper oxide nanorods assembly and their whisker transformation at liquid-liquid interface and on solid surfaces

AU - Al-Harthi, Salim H.

AU - Widatallah, Hisham M.

AU - Al-Hinai, Ashraf T.

AU - Elzain, Mohamed E.

AU - Nishiyama, Hidetoshi

AU - Myint, Myo Tay Zar

N1 - Funding Information: The authors acknowledge the support of Dr. Issa Al-amri from the Electron Microscopy Unit, College of Medicine and Health Sciences, Sultan Qaboos University for the TEM imaging and the Advanced Technology Division, JEOL Ltd, Japan for using ASEM instrument. Authors would like to acknowledge M. Al-Bahri and K.P Revathy for sample preparation.

PY - 2014/4/15

Y1 - 2014/4/15

N2 - We report on real time fluctuations and chain-like assemblies of copper oxide (CuO) nanorods at the liquid-liquid interface. The rods were found to transform into whiskers and 3D structures upon spin-casting on silicon substrates. The results of atmospheric scanning electron microscope (ASEM) and atomic force microscopy (AFM) provide compelling evidence that both the transformation and the assembly are driven by interaction between the π electrons of toluene and CuO nanorods, and to a smaller extent by breath figure dynamics rather than the solution-liquid-solid mechanism that was previously believed to account for whisker formation. These results open up a way for studying and understanding the dynamics of nanoparticles at liquid-liquid interfaces.

AB - We report on real time fluctuations and chain-like assemblies of copper oxide (CuO) nanorods at the liquid-liquid interface. The rods were found to transform into whiskers and 3D structures upon spin-casting on silicon substrates. The results of atmospheric scanning electron microscope (ASEM) and atomic force microscopy (AFM) provide compelling evidence that both the transformation and the assembly are driven by interaction between the π electrons of toluene and CuO nanorods, and to a smaller extent by breath figure dynamics rather than the solution-liquid-solid mechanism that was previously believed to account for whisker formation. These results open up a way for studying and understanding the dynamics of nanoparticles at liquid-liquid interfaces.

KW - A1. Assembly

KW - A1. Dynamics

KW - A1. Interface

KW - A1. Nanorod

KW - A1. Whisker

KW - B1. Copper oxide

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U2 - 10.1016/j.jcrysgro.2014.01.005

DO - 10.1016/j.jcrysgro.2014.01.005

M3 - Article

AN - SCOPUS:84894345011

SN - 0022-0248

VL - 392

SP - 41

EP - 48

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

ER -

Copper oxide nanorods assembly and their whisker transformation at liquid-liquid interface and on solid surfaces

Abstract

Keywords

ASJC Scopus subject areas

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