Towards new precursors for ZnO thin films by single source CVD: the X-ray structures and precursor properties of zinc ketoacidoximates

A class of zinc α-ketoacidoximates have been prepared as precursors for the single source chemical vapour deposition of ZnO thin films. The X-ray structures of this class of compounds have been elucidated for the first time and show interesting structural variations relating to ligand substituents,...

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Bibliographic Details
Published in:Inorganica Chimica Acta 2005, Vol.358 (1), p.201-206
Main Authors: Hill, Matthew R., Jones, Ashley W., Russell, Jennifer J., Roberts, Nicholas K., Lamb, Robert N.
Format: Article
Language:English
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Summary:A class of zinc α-ketoacidoximates have been prepared as precursors for the single source chemical vapour deposition of ZnO thin films. The X-ray structures of this class of compounds have been elucidated for the first time and show interesting structural variations relating to ligand substituents, which also influence the thermal stability and sublimation yield of these complexes. Zinc complexes of pyruvic and glyoxylic acid oximes have been investigated as potential precursors for single source chemical vapour deposition (SSCVD) of ZnO thin films. The X-ray crystal structures of the complexes and of their –NOMe analogues reveal markedly different coordination and intermolecular bonding patterns. These structural differences, in conjunction with ligand substituent changes impart different responses to thermogravimetric analysis (TGA), and sublimation. The glyoxylic acid methyloxime Zn(O 2CCHN(OMe)) 2 · 2H 2O has volatility and thermolysis properties suitable for SSCVD of ZnO.
ISSN:0020-1693
1873-3255
DOI:10.1016/j.ica.2004.07.022