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Title: In Situ X-ray Absorption Near-Edge Structure Spectroscopy of ZnO Nanowire Growth During Chemical Bath Deposition

Abstract

Chemical bath deposition (CBD) offers a simple and inexpensive route to deposit semiconductor nanostructures, but lack of fundamental understanding and control of the underlying chemistry has limited its versatility. Here we report the first use of in situ X-ray absorption spectroscopy during CBD, enabling detailed investigation of both reaction mechanisms and kinetics of ZnO nanowire growth from zinc nitrate and hexamethylenetetramine (HMTA) precursors. Time-resolved X-ray absorption near-edge structure (XANES) spectra were used to quantify Zn(II) speciation in both solution and solid phases. ZnO crystallizes directly from [Zn(H{sub 2}O){sub 6}]{sup 2+} without long-lived intermediates. Using ZnO nanowire deposition as an example, this study establishes in situ XANES spectroscopy as an excellent quantitative tool to understand CBD of nanomaterials.

Authors:
; ; ; ; ;  [1];  [2]
  1. (Drexel)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1002895
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chem. Mater.; Journal Volume: 22; Journal Issue: (22) ; 11, 2010
Country of Publication:
United States
Language:
ENGLISH
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; ABSORPTION SPECTROSCOPY; CHEMISTRY; DEPOSITION; KINETICS; NANOSTRUCTURES; REACTION KINETICS; SPECTRA; SPECTROSCOPY; UROTROPIN; ZINC NITRATES

Citation Formats

McPeak, Kevin M., Becker, Matthew A., Britton, Nathan G., Majidi, Hasti, Bunker, Bruce A., Baxter, Jason B., and Notre). In Situ X-ray Absorption Near-Edge Structure Spectroscopy of ZnO Nanowire Growth During Chemical Bath Deposition. United States: N. p., 2010. Web. doi:10.1021/cm102155m.
McPeak, Kevin M., Becker, Matthew A., Britton, Nathan G., Majidi, Hasti, Bunker, Bruce A., Baxter, Jason B., & Notre). In Situ X-ray Absorption Near-Edge Structure Spectroscopy of ZnO Nanowire Growth During Chemical Bath Deposition. United States. doi:10.1021/cm102155m.
McPeak, Kevin M., Becker, Matthew A., Britton, Nathan G., Majidi, Hasti, Bunker, Bruce A., Baxter, Jason B., and Notre). Fri . "In Situ X-ray Absorption Near-Edge Structure Spectroscopy of ZnO Nanowire Growth During Chemical Bath Deposition". United States. doi:10.1021/cm102155m.
@article{osti_1002895,
title = {In Situ X-ray Absorption Near-Edge Structure Spectroscopy of ZnO Nanowire Growth During Chemical Bath Deposition},
author = {McPeak, Kevin M. and Becker, Matthew A. and Britton, Nathan G. and Majidi, Hasti and Bunker, Bruce A. and Baxter, Jason B. and Notre)},
abstractNote = {Chemical bath deposition (CBD) offers a simple and inexpensive route to deposit semiconductor nanostructures, but lack of fundamental understanding and control of the underlying chemistry has limited its versatility. Here we report the first use of in situ X-ray absorption spectroscopy during CBD, enabling detailed investigation of both reaction mechanisms and kinetics of ZnO nanowire growth from zinc nitrate and hexamethylenetetramine (HMTA) precursors. Time-resolved X-ray absorption near-edge structure (XANES) spectra were used to quantify Zn(II) speciation in both solution and solid phases. ZnO crystallizes directly from [Zn(H{sub 2}O){sub 6}]{sup 2+} without long-lived intermediates. Using ZnO nanowire deposition as an example, this study establishes in situ XANES spectroscopy as an excellent quantitative tool to understand CBD of nanomaterials.},
doi = {10.1021/cm102155m},
journal = {Chem. Mater.},
number = (22) ; 11, 2010,
volume = 22,
place = {United States},
year = {Fri Dec 03 00:00:00 EST 2010},
month = {Fri Dec 03 00:00:00 EST 2010}
}