Contributions to the synthesis of silicon-rich oligocarbosilanes and their use as precursors for electrically conductive films
- This work presents an easier route to unsaturated silicon-rich oligocarbosilanes with conjugated and nonconjugated chains and the first oriented investigation of the optical and electronic properties of the synthesized materials before and after doping with iodine. The thesis has three important parts: the synthesis of the precursors as monomers for oligomerization, the oligomerization reactions and the conductivity measurements of the synthesized monomers and oligomers. The precursors are dialkenyl-oligosilanes and have been oligomerized by olefin metathesis reaction in the presence of Grubbs catalyst. An alternative method to unsaturated oligosilanes is the salt metathesis reaction of \(\alpha\),\(\omega\)-dilithiooligosilane with dichloro-olefins. The conductivity of thin films of the products has been measured by means of four probe method. The majority of the synthesized oligocarbosilanes have the conductivity between \(10^{-3}\)-\(10^{-2}\) S/m. A nonconjugated monomer has the conductivity of 1 S/m.
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| Author: | Gabriela MeraGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-13505 |
| Referee: | Matthias DriessGND, William S. SheldrickGND, Wolfram SanderORCiDGND |
| Document Type: | Doctoral Thesis |
| Language: | English |
| Date of Publication (online): | 2005/07/19 |
| Date of first Publication: | 2005/07/19 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Granting Institution: | Ruhr-Universität Bochum, Fakultät für Chemie und Biochemie |
| Date of final exam: | 2005/03/17 |
| Creating Corporation: | Fakultät für Chemie und Biochemie |
| GND-Keyword: | Hybridwerkstoff; Carbosilane; Alkene / Metathese (Chemie); Oligomere |
| Institutes/Facilities: | Lehrstuhl für anorganische Chemie I |
| Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Chemie, Kristallographie, Mineralogie |
| faculties: | Fakultät für Chemie und Biochemie |
| Licence (German): |  Keine Creative Commons Lizenz - es gelten der Veröffentlichungsvertrag und das deutsche Urheberrecht |
