Formation of crystalline germanium nanoclusters in a silica xerogel matrix from an organogermanium precursor

Joseph P. Carpenter; C. M. Lukehart; D. O. Henderson; R. Mu; Bobby D. Jones; R. Glosser; S. R. Stock; James E. Wittig; Jane G. Zhu

doi:10.1021/cm950548i

Formation of crystalline germanium nanoclusters in a silica xerogel matrix from an organogermanium precursor

Joseph P. Carpenter, C. M. Lukehart^*, D. O. Henderson, R. Mu, Bobby D. Jones, R. Glosser, S. R. Stock, James E. Wittig, Jane G. Zhu

^*Corresponding author for this work

Cell & Developmental Biology

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

25 Scopus citations

Abstract

Addition of the organogermanium compound, Me₃GeS(CH₂)₃Si(OMe)₃, to a modified, conventional sol-gel formulation gives a silica xerogel doped with this molecular species. Subsequent thermal treatment of this molecularly doped xerogel under oxidizing then reducing conditions affords nanoclusters of Ge highly dispersed throughout the bulk of the xerogel matrix. Under appropriate conditions, Ge nanoclusters having an average diameter of ca. 68 Å can be formed by this procedure. Characterization of this nanocomposite material by TEM, HRTEM, EDS, XRD, micro-Raman spectroscopy, electron diffraction, and UV - visible spectroscopy indicates that the Ge nanoclusters are highly crystalline and exhibit optical properties consistent with those expected when quantum confinement effects are operative.

Original language	English (US)
Pages (from-to)	1268-1274
Number of pages	7
Journal	Chemistry of Materials
Volume	8
Issue number	6
DOIs	https://doi.org/10.1021/cm950548i
State	Published - Jun 1996

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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@article{085e0a577b9b4f05ac72d26e9771faf9,

title = "Formation of crystalline germanium nanoclusters in a silica xerogel matrix from an organogermanium precursor",

abstract = "Addition of the organogermanium compound, Me3GeS(CH2)3Si(OMe)3, to a modified, conventional sol-gel formulation gives a silica xerogel doped with this molecular species. Subsequent thermal treatment of this molecularly doped xerogel under oxidizing then reducing conditions affords nanoclusters of Ge highly dispersed throughout the bulk of the xerogel matrix. Under appropriate conditions, Ge nanoclusters having an average diameter of ca. 68 {\AA} can be formed by this procedure. Characterization of this nanocomposite material by TEM, HRTEM, EDS, XRD, micro-Raman spectroscopy, electron diffraction, and UV - visible spectroscopy indicates that the Ge nanoclusters are highly crystalline and exhibit optical properties consistent with those expected when quantum confinement effects are operative.",

author = "Carpenter, {Joseph P.} and Lukehart, {C. M.} and Henderson, {D. O.} and R. Mu and Jones, {Bobby D.} and R. Glosser and Stock, {S. R.} and Wittig, {James E.} and Zhu, {Jane G.}",

year = "1996",

month = jun,

doi = "10.1021/cm950548i",

language = "English (US)",

volume = "8",

pages = "1268--1274",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Formation of crystalline germanium nanoclusters in a silica xerogel matrix from an organogermanium precursor

AU - Carpenter, Joseph P.

AU - Lukehart, C. M.

AU - Henderson, D. O.

AU - Mu, R.

AU - Jones, Bobby D.

AU - Glosser, R.

AU - Stock, S. R.

AU - Wittig, James E.

AU - Zhu, Jane G.

PY - 1996/6

Y1 - 1996/6

N2 - Addition of the organogermanium compound, Me3GeS(CH2)3Si(OMe)3, to a modified, conventional sol-gel formulation gives a silica xerogel doped with this molecular species. Subsequent thermal treatment of this molecularly doped xerogel under oxidizing then reducing conditions affords nanoclusters of Ge highly dispersed throughout the bulk of the xerogel matrix. Under appropriate conditions, Ge nanoclusters having an average diameter of ca. 68 Å can be formed by this procedure. Characterization of this nanocomposite material by TEM, HRTEM, EDS, XRD, micro-Raman spectroscopy, electron diffraction, and UV - visible spectroscopy indicates that the Ge nanoclusters are highly crystalline and exhibit optical properties consistent with those expected when quantum confinement effects are operative.

AB - Addition of the organogermanium compound, Me3GeS(CH2)3Si(OMe)3, to a modified, conventional sol-gel formulation gives a silica xerogel doped with this molecular species. Subsequent thermal treatment of this molecularly doped xerogel under oxidizing then reducing conditions affords nanoclusters of Ge highly dispersed throughout the bulk of the xerogel matrix. Under appropriate conditions, Ge nanoclusters having an average diameter of ca. 68 Å can be formed by this procedure. Characterization of this nanocomposite material by TEM, HRTEM, EDS, XRD, micro-Raman spectroscopy, electron diffraction, and UV - visible spectroscopy indicates that the Ge nanoclusters are highly crystalline and exhibit optical properties consistent with those expected when quantum confinement effects are operative.

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JO - Chemistry of Materials

JF - Chemistry of Materials

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Formation of crystalline germanium nanoclusters in a silica xerogel matrix from an organogermanium precursor

Abstract

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