Mileham, John David;
(2002)
Synthesis and characterisation of single-source precursors to metal chalcogenides and pnictides.
Doctoral thesis (Ph.D), UCL (University College London).
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Abstract
This thesis is primarily concerned with the synthesis of group 13 pnictides, group 13 chalcogenides and mixed-metal chalcogenides. The decomposition properties of some of the compounds prepared have also been investigated. Chapter 1 gives an introduction to techniques used for coating, in particular chemical vapour deposition (CVD). Chapter 2 is concerned with group 13 pnictides and the synthesis of a number of group 13 silylpnictides are discussed. The properties, preparation procedures and uses of bulk and thin film group 13 pnictides are discussed and the group 13 silylpnictides synthesised so far in the literature. The main synthetic methodologies discussed include dehalosilylation, dealkylsilylation, alkene elimination, salt elimination and adduct formation. The decomposition properties of some of the compounds prepared are investigated by thermal gravimetric analysis and bulk pyrolysis. Vapour-phase deposition studies are carried out in order to test the potential of the group 13 silylpnictides as single-source precursors to the group 13 pnictides. Chapter 3 discusses the properties, preparation procedures and uses of bulk and thin film aluminium chalcogenides and the aluminium alkoxides and thiolates synthesised so far in the literature. The synthesis of a number of aluminium alkoxides and thiolates is described and the decomposition properties of some of the compounds produced are investigated. Vapour-phase deposition studies are carried out in order to test the potential of the aluminium alkoxides and thiolates as singlesource precursors to aluminium oxide and sulfide respectively. Chapter 4 is concerned with mixed-metal chalcogenides and the synthesis of a number of mixed-metal alkoxide and thiolates is discussed. The decomposition properties of some of these compounds are also investigated.
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Synthesis and characterisation of single-source precursors to metal chalcogenides and pnictides |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | Thesis digitised by ProQuest. |
| Keywords: | Applied sciences; Chalcogenides |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10101869 |
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