Synthesis of amorphous germanium dioxide particles mediated by a macromolecule

S V Patwardhan, S J Clarson

Research output: Contribution to journalSpecial issue

Abstract

The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties. The recent findings on the importance of the role of the (bio)macromolecules in (bio)mineralization has led us to investigate the role of synthetic macromolecules in facilitating the formation of germania particles for the first time. One novelty is that the process described herein was carried out under ambient conditions and at neutral pH. Amorphous spherical germania particles were seen by scanning electron microscopy. Furthermore, when the reaction mixture was subjected to external shear, the formation of elongated rod-like germania structures was successfully achieved. This novel process is of importance for the design of new materials based on germania and silica-germania hybrids for potential applications such as their use in optical fibers.

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Germanium
Macromolecules
Biomineralization
Silicates
Silicon
germanium oxide
Silicon Dioxide
Optoelectronic devices
Chemical properties
Optical fibers
Optical properties
Silica
Glass
Scanning electron microscopy

Keywords

  • optical properties
  • germanium dioxide
  • germania
  • GeO2
  • optoelectronic applications
  • macromolecule

Cite this

@article{fe7a6190424342fb94c75d61403e6b63,
title = "Synthesis of amorphous germanium dioxide particles mediated by a macromolecule",
abstract = "The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties. The recent findings on the importance of the role of the (bio)macromolecules in (bio)mineralization has led us to investigate the role of synthetic macromolecules in facilitating the formation of germania particles for the first time. One novelty is that the process described herein was carried out under ambient conditions and at neutral pH. Amorphous spherical germania particles were seen by scanning electron microscopy. Furthermore, when the reaction mixture was subjected to external shear, the formation of elongated rod-like germania structures was successfully achieved. This novel process is of importance for the design of new materials based on germania and silica-germania hybrids for potential applications such as their use in optical fibers.",
keywords = "optical properties , germanium dioxide , germania , GeO2, optoelectronic applications, macromolecule",
author = "Patwardhan, {S V} and Clarson, {S J}",
year = "2003",
month = "9",
language = "English",
volume = "226",
pages = "U361--U361",
journal = "Abstracts of papers - American Chemical Society",
issn = "0065-7727",
publisher = "American Chemical Society",

}

Synthesis of amorphous germanium dioxide particles mediated by a macromolecule. / Patwardhan, S V ; Clarson, S J .

In: Abstracts of papers - American Chemical Society, Vol. 226, 09.2003, p. U361-U361.

Research output: Contribution to journalSpecial issue

TY - JOUR

T1 - Synthesis of amorphous germanium dioxide particles mediated by a macromolecule

AU - Patwardhan, S V

AU - Clarson, S J

PY - 2003/9

Y1 - 2003/9

N2 - The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties. The recent findings on the importance of the role of the (bio)macromolecules in (bio)mineralization has led us to investigate the role of synthetic macromolecules in facilitating the formation of germania particles for the first time. One novelty is that the process described herein was carried out under ambient conditions and at neutral pH. Amorphous spherical germania particles were seen by scanning electron microscopy. Furthermore, when the reaction mixture was subjected to external shear, the formation of elongated rod-like germania structures was successfully achieved. This novel process is of importance for the design of new materials based on germania and silica-germania hybrids for potential applications such as their use in optical fibers.

AB - The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties. The recent findings on the importance of the role of the (bio)macromolecules in (bio)mineralization has led us to investigate the role of synthetic macromolecules in facilitating the formation of germania particles for the first time. One novelty is that the process described herein was carried out under ambient conditions and at neutral pH. Amorphous spherical germania particles were seen by scanning electron microscopy. Furthermore, when the reaction mixture was subjected to external shear, the formation of elongated rod-like germania structures was successfully achieved. This novel process is of importance for the design of new materials based on germania and silica-germania hybrids for potential applications such as their use in optical fibers.

KW - optical properties

KW - germanium dioxide

KW - germania

KW - GeO2

KW - optoelectronic applications

KW - macromolecule

M3 - Special issue

VL - 226

SP - U361-U361

JO - Abstracts of papers - American Chemical Society

T2 - Abstracts of papers - American Chemical Society

JF - Abstracts of papers - American Chemical Society

SN - 0065-7727

ER -