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

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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 languageEnglish
Pages (from-to)41-48
Number of pages8
JournalJournal of Crystal Growth
Volume392
DOIs
Publication statusPublished - Apr 15 2014

Fingerprint

liquid-liquid interfaces
Copper oxides
copper oxides
Nanorods
solid surfaces
nanorods
assembly
Liquids
assemblies
toluene
rods
electron microscopes
atomic force microscopy
nanoparticles
scanning
silicon
liquids
Toluene
Silicon
electrons

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Inorganic Chemistry

Cite this

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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.",
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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}",
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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

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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