Single crystalline semi-nanotubes of indium germanate

Chaoyi Yan; Tao Zhang; Pooi See Lee

doi:10.1021/cg8004882

Single crystalline semi-nanotubes of indium germanate

Chaoyi Yan, Tao Zhang, Pooi See Lee^*

^*Corresponding author for this work

Nanyang Technological University

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

26 Citations (Scopus)

Abstract

Single crystalline In₂Ge₂O₇ nanotubes were synthesized by a thermal evaporation method. The growth mechanism of those novel seminanotubular structures was explained to be a vapor-liquid-solid (VLS) mechanism. Its morphology and structures were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS). The semi-nanotubes have widths of 80-500 nm and lengths of 5-20 μm. As-synthesized products were found to be single crystalline In₂Ge₂aO₇ with a monoclinic crystal structure. Indium particles serve as catalysts to direct nanotube growth. Germanium concentration nonuniformity is proposed to be the reason for a semi-nanotubular structure nucleation rather than nanotubes or nanowires.

Original language	English
Pages (from-to)	3144-3147
Number of pages	4
Journal	Crystal Growth and Design
Volume	8
Issue number	9
DOIs	https://doi.org/10.1021/cg8004882
Publication status	Published - Sept 2008
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1021/cg8004882

Cite this

@article{ff02c5bd989444ec86ae18b3b74c8f4e,

title = "Single crystalline semi-nanotubes of indium germanate",

abstract = "Single crystalline In2Ge2O7 nanotubes were synthesized by a thermal evaporation method. The growth mechanism of those novel seminanotubular structures was explained to be a vapor-liquid-solid (VLS) mechanism. Its morphology and structures were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS). The semi-nanotubes have widths of 80-500 nm and lengths of 5-20 μm. As-synthesized products were found to be single crystalline In2Ge2aO7 with a monoclinic crystal structure. Indium particles serve as catalysts to direct nanotube growth. Germanium concentration nonuniformity is proposed to be the reason for a semi-nanotubular structure nucleation rather than nanotubes or nanowires.",

author = "Chaoyi Yan and Tao Zhang and Lee, \{Pooi See\}",

year = "2008",

month = sep,

doi = "10.1021/cg8004882",

language = "English",

volume = "8",

pages = "3144--3147",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "9",

}

TY - JOUR

T1 - Single crystalline semi-nanotubes of indium germanate

AU - Yan, Chaoyi

AU - Zhang, Tao

AU - Lee, Pooi See

PY - 2008/9

Y1 - 2008/9

N2 - Single crystalline In2Ge2O7 nanotubes were synthesized by a thermal evaporation method. The growth mechanism of those novel seminanotubular structures was explained to be a vapor-liquid-solid (VLS) mechanism. Its morphology and structures were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS). The semi-nanotubes have widths of 80-500 nm and lengths of 5-20 μm. As-synthesized products were found to be single crystalline In2Ge2aO7 with a monoclinic crystal structure. Indium particles serve as catalysts to direct nanotube growth. Germanium concentration nonuniformity is proposed to be the reason for a semi-nanotubular structure nucleation rather than nanotubes or nanowires.

AB - Single crystalline In2Ge2O7 nanotubes were synthesized by a thermal evaporation method. The growth mechanism of those novel seminanotubular structures was explained to be a vapor-liquid-solid (VLS) mechanism. Its morphology and structures were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS). The semi-nanotubes have widths of 80-500 nm and lengths of 5-20 μm. As-synthesized products were found to be single crystalline In2Ge2aO7 with a monoclinic crystal structure. Indium particles serve as catalysts to direct nanotube growth. Germanium concentration nonuniformity is proposed to be the reason for a semi-nanotubular structure nucleation rather than nanotubes or nanowires.

UR - http://www.scopus.com/inward/record.url?scp=61549104119&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=61549104119&partnerID=8YFLogxK

U2 - 10.1021/cg8004882

DO - 10.1021/cg8004882

M3 - Article

AN - SCOPUS:61549104119

SN - 1528-7483

VL - 8

SP - 3144

EP - 3147

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 9

ER -

Single crystalline semi-nanotubes of indium germanate

Abstract

ASJC Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this