Dokument: Electroforming in titanium dioxide microdevices
| Titel: | Electroforming in titanium dioxide microdevices | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=49721 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20190531-103235-0 | |||||||
| Kollektion: | Dissertationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Abschlussarbeiten » Dissertation | |||||||
| Medientyp: | Text | |||||||
| Autor: | Herbertz, Svenja [Autor] | |||||||
| Dateien: |
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| Beitragende: | Prof. Dr. Heinzel, Thomas [Gutachter] Prof. Dr. Görlitz, Axel [Gutachter] | |||||||
| Dewey Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik » 530 Physik | |||||||
| Beschreibung: | This thesis deals with the effects of electroforming on gas sensing microdevices and its applications. Electroforming can be defined as structural changes in solids in response to applied electric fields. It comprises the drift of ions and charged defects, electric field induced changes in the crystal structure as well as field-induced chemical reactions like oxidation. Electroforming effects typically require electric fields above a material-specific threshold. It is therefore expected that the occurrence of related effects increases as the samples are miniaturized. The objective of the present dissertation is a systematic study of electroforming effects in functional solid-state microstructures and their possible utilization for the preparation or improvement of solid-state based devices. Titanium oxide has been selected as a paradigmatic material, since it is predestined for pertinent studies: the drift mobility of charged oxygen vacancies is unusually large, the material can be anodized easily, and there are many known oxidation states, with the Magnéli phases being the most prominent example. Also, titanium oxide is used in a wide variety of applications as diverse as, for example, solid state catalysts, memristive devices, gas sensors or inorganic hybrid solar cells. | |||||||
| Lizenz: |  Urheberrechtsschutz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät » WE Physik » Physik der kondensierten Materie | |||||||
| Dokument erstellt am: | 31.05.2019 | |||||||
| Dateien geändert am: | 31.05.2019 | |||||||
| Promotionsantrag am: | 17.12.2018 | |||||||
| Datum der Promotion: | 29.03.2019 |
