Douglas, Samuel P;
(2021)
Synthetic, Structural and Decomposition Studies of Aluminium Precursors to Functional Materials.
Doctoral thesis (Ph.D), UCL (University College London).
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Abstract
This thesis describes the synthesis of a range of aluminium precursors, the majority of which are novel, in order to assess their suitability towards low temperature decomposition to aluminium functional materials, namely aluminium metal and/or oxide via thermogravimetric analysis (TGA). Chapter 1 sets the scene for the thesis, beginning with a preface for this work, project aims and a thesis synopsis. It then proceeds with a brief introduction covering topics such as general precursor chemistry, why aluminium was chosen as the metal centre to investigate and a review of several deposition techniques in which precursors can be used to deposit metal and/or metal oxide films Chapter 2 details all the experimental and characterisation procedures conducted in this research project, for the research discussed in Chapters 3−6. Chapters 3 and 4 describe the synthesis of several novel tris(β-ketoiminate) aluminium and novel bis(β-ketoiminate) aluminium monochloride compounds, respectively. Each family of compounds is fully characterised including by SCXRD, multi-nuclear NMR spectroscopy, mass spectrometry and elemental analysis. Each set of precursors is assessed by analysing their decomposition behaviour via TGA and some through pyrolysis experiments. Chapter 5 involves the synthesis of two types of aluminium hydride compound; mono(β-diketiminate) aluminium dihydrides a family of complexes better known for catalytic small molecule activation and amine-stabilised alanes, a more well-known family of precursors to Al functional materials. Again, the suitability of both families of compounds towards low temperature decomposition is assessed using TGA. Chapter 6 involves the solution-based deposition of two of the best performing precursors thermally analysed in this work, followed by their low temperature thermal sintering. The films were analysed using a multitude of techniques to gauge the effectiveness of the most promising formulations. Chapter 7 concludes the work detailed within this thesis and provides some insight into how this research can be expanded in the future.
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Synthetic, Structural and Decomposition Studies of Aluminium Precursors to Functional Materials |
| Event: | UCL (University College London) |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | Copyright © The Author 2022. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10141055 |
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