| Téléchargement | - Voir le manuscrit accepté : Characterization of carrier states in CuWO4 thin-films at elevated temperatures using conductometric analysis (PDF, 2.3 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1016/j.jssc.2013.02.002 |
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| Auteur | Rechercher : Gonzalez, Carlos M.1; Rechercher : Dunford, Jeffrey L.1; Rechercher : Du, Xiaomei1; Rechercher : Post, Michael L.1 |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
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| Format | Texte, Article |
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| Sujet | Semiconducting metal-oxide; Surface characterization; Electron transport; Conductometric analysis; Activation energy; Oxygen states |
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| Résumé | CuWO4 thin-films were deposited by pulsed laser deposition onto an insulating substrate. The temperature dependence of the electronic conductivity of CuWO4 thin-films was determed over the 100-500 degree Celsius temperature range in a synthetic air atmosphere. Additionally, variations of conductivity at 300 degrees Celsius and 500 degrees Celsius have been measured for oxygen partial pressures (0.1 atm less than p(O2) less than 0.9 atm) in nitrogen. The apparent activation energy (delta)Ea for the electrical conduction has been estimated. The study of the temperature effect on the electron transport properties of CuWO4 thin-films reveals the operation of two temperature-dependent oxygen states. The effect of varying oxygen concentration on the electronic properties is discussed in detail. The electrochemical nature of the operating oxygen states for the 100-500 degree Celsius temperature range is deduced using a physicochemical model that relates electronic conductivity with oxygen partial pressure and temperature. |
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| Date de publication | 2013-02-10 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Identificateur | S0022459613000777 |
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| Numéro du CNRC | NRCC 53116 |
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| Numéro NPARC | 21268499 |
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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 | 90b48cb0-8dc6-4ee8-8791-1c1c7ac31811 |
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| Enregistrement créé | 2013-08-16 |
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| Enregistrement modifié | 2020-06-04 |
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