| Auteur | Rechercher : Post, Michael1; Rechercher : Tunney, Jim1; Rechercher : Yang, Dongfang2; Rechercher : Du, Xiaomei1; Rechercher : Singleton, D. |
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| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
- Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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| Format | Texte, Article |
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| Sujet | Perovskite; Thin film; Oxygen sensor; SrFeO2.5+x; SrFeO3 |
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| Résumé | The advantages of applying non-stoichiometric perovskite materials in chemical sensor applications are reviewed and highlighted with particular reference to the SrFeO2.5+x system. The phase relationships of SrFeO2.5+x for (0 < x < 0.5) are described and differences identified with the substituted material, SrFe0.9Cu0.1O2.5+x, such that the prospect of 'tunable' chemical and physical properties is identified. Thin films of the parent perovskite have been prepared by the pulsed laser deposition technique and gas sensor functionality determined by exploiting the effects of gas exposure upon a number of physical properties. There is a large change in the electrical conductivity of SrFeO2.5+x thin-films when exposed to variations in oxygen partial pressure over a wide temperature range as shown in this and previous work. These changes are rapid and reversible at the temperature of the present work at 763 K. The chemical sensing properties of the subject perovskite are compared to two other perovskite materials. Many of the perovskite family of materials in the form of thin-films are well-suited to integration into microsensor devices on various substrate platforms. |
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| Date de publication | 1999 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | NRCC 51703 |
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| Numéro NPARC | 12455153 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | b6158a2f-a683-4ecc-b4a7-640b14b911cf |
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| Enregistrement créé | 2009-10-09 |
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| Enregistrement modifié | 2020-03-20 |
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