Synthesis and characterization of fluorinated β-ketoiminate zinc precursors and their utility in the AP-MOCVD growth of ZnO:F

Andrew L. Johnson, Samuel D. Cosham, Gabriele Kociok-Kohn, Jeff A. Hamilton, Michael S. Hill, Kieran C. Molloy, Remi Castaing

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Abstract

A novel family of zinc bis beta-ketoiminate complexes 2b-2h have been synthesized by reaction of the isolated free ligands (1a-h) with dimethylzinc. The isolated zinc complexes were characterized by elemental analysis, NMR spectroscopy, and in the case of 2b-d and 2f-h, the molecular structures of the complexes were determined by single crystal X-ray diffraction which reveals the compounds to be pseudo-octahedral 6-coordinate, monomeric homoleptic complexes in the solid state. TG analysis showed complexes 2b-f all to have residual masses at 400 °C of 10% or less, well below the value for ZnO and thus indicative of volatility. Of these systems 2b [Zn{MeC(O)CHC(NCH2CH2OMe)CF3}2] has been investigated for its utility in the AP-MOCVD growth of F –doped ZnO (ZnO:F) in the absence of additional oxidant at 400 °C on glass and silicon substrates.
Original languageEnglish
Pages (from-to)4362-4372
JournalEuropean Journal of Inorganic Chemistry
Volume26
Early online date24 Aug 2015
DOIs
Publication statusPublished - Sep 2015

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Metallorganic chemical vapor deposition
Zinc
Silicon
Oxidants
Molecular structure
Nuclear magnetic resonance spectroscopy
Single crystals
Ligands
X ray diffraction
Glass
Substrates
Chemical analysis
dimethylzinc

Keywords

  • Zinc Oxide
  • Precursor
  • CVD
  • beta-ketoininate

Cite this

@article{249537ff93774031b3ad4d255d853e3d,
title = "Synthesis and characterization of fluorinated β-ketoiminate zinc precursors and their utility in the AP-MOCVD growth of ZnO:F",
abstract = "A novel family of zinc bis beta-ketoiminate complexes 2b-2h have been synthesized by reaction of the isolated free ligands (1a-h) with dimethylzinc. The isolated zinc complexes were characterized by elemental analysis, NMR spectroscopy, and in the case of 2b-d and 2f-h, the molecular structures of the complexes were determined by single crystal X-ray diffraction which reveals the compounds to be pseudo-octahedral 6-coordinate, monomeric homoleptic complexes in the solid state. TG analysis showed complexes 2b-f all to have residual masses at 400 °C of 10{\%} or less, well below the value for ZnO and thus indicative of volatility. Of these systems 2b [Zn{MeC(O)CHC(NCH2CH2OMe)CF3}2] has been investigated for its utility in the AP-MOCVD growth of F –doped ZnO (ZnO:F) in the absence of additional oxidant at 400 °C on glass and silicon substrates.",
keywords = "Zinc Oxide, Precursor , CVD , beta-ketoininate",
author = "Johnson, {Andrew L.} and Cosham, {Samuel D.} and Gabriele Kociok-Kohn and Hamilton, {Jeff A.} and Hill, {Michael S.} and Molloy, {Kieran C.} and Remi Castaing",
year = "2015",
month = "9",
doi = "10.1002/ejic.201500536",
language = "English",
volume = "26",
pages = "4362--4372",
journal = "European Journal of Inorganic Chemistry",
issn = "1434-1948",
publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Synthesis and characterization of fluorinated β-ketoiminate zinc precursors and their utility in the AP-MOCVD growth of ZnO:F

AU - Johnson, Andrew L.

AU - Cosham, Samuel D.

AU - Kociok-Kohn, Gabriele

AU - Hamilton, Jeff A.

AU - Hill, Michael S.

AU - Molloy, Kieran C.

AU - Castaing, Remi

PY - 2015/9

Y1 - 2015/9

N2 - A novel family of zinc bis beta-ketoiminate complexes 2b-2h have been synthesized by reaction of the isolated free ligands (1a-h) with dimethylzinc. The isolated zinc complexes were characterized by elemental analysis, NMR spectroscopy, and in the case of 2b-d and 2f-h, the molecular structures of the complexes were determined by single crystal X-ray diffraction which reveals the compounds to be pseudo-octahedral 6-coordinate, monomeric homoleptic complexes in the solid state. TG analysis showed complexes 2b-f all to have residual masses at 400 °C of 10% or less, well below the value for ZnO and thus indicative of volatility. Of these systems 2b [Zn{MeC(O)CHC(NCH2CH2OMe)CF3}2] has been investigated for its utility in the AP-MOCVD growth of F –doped ZnO (ZnO:F) in the absence of additional oxidant at 400 °C on glass and silicon substrates.

AB - A novel family of zinc bis beta-ketoiminate complexes 2b-2h have been synthesized by reaction of the isolated free ligands (1a-h) with dimethylzinc. The isolated zinc complexes were characterized by elemental analysis, NMR spectroscopy, and in the case of 2b-d and 2f-h, the molecular structures of the complexes were determined by single crystal X-ray diffraction which reveals the compounds to be pseudo-octahedral 6-coordinate, monomeric homoleptic complexes in the solid state. TG analysis showed complexes 2b-f all to have residual masses at 400 °C of 10% or less, well below the value for ZnO and thus indicative of volatility. Of these systems 2b [Zn{MeC(O)CHC(NCH2CH2OMe)CF3}2] has been investigated for its utility in the AP-MOCVD growth of F –doped ZnO (ZnO:F) in the absence of additional oxidant at 400 °C on glass and silicon substrates.

KW - Zinc Oxide

KW - Precursor

KW - CVD

KW - beta-ketoininate

UR - http://dx.doi.org/10.1002/ejic.201500536

U2 - 10.1002/ejic.201500536

DO - 10.1002/ejic.201500536

M3 - Article

VL - 26

SP - 4362

EP - 4372

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

SN - 1434-1948

ER -