Nanograined anatase titania-based optochemical gas detection

Optochemical sensing properties of thick films of titanium dioxide (titania) in anatase phase have been studied and compared with tin dioxide cassiterite. Anatase titania exhibits a large photoluminescence response to nitrogen dioxide, which acts as a luminescence enhancer. Intrinsic surface phenomena rather than bulk defectivity are proposed to account for the behaviour and the experimental results are fitted with the Langmuir model. Good operational performances working at room temperature are achieved.

Data di pubblicazione: 2008
Titolo: Nanograined anatase titania-based optochemical gas detection
Autori: A Setaro; S Lettieri; D Diamare; P Maddalena; C Malagù; M C Carotta; G Martinelli
Rivista: NEW JOURNAL OF PHYSICS
Parole Chiave: titania
Abstract: Optochemical sensing properties of thick films of titanium dioxide (titania) in anatase phase have been studied and compared with tin dioxide cassiterite. Anatase titania exhibits a large photoluminescence response to nitrogen dioxide, which acts as a luminescence enhancer. Intrinsic surface phenomena rather than bulk defectivity are proposed to account for the behaviour and the experimental results are fitted with the Langmuir model. Good operational performances working at room temperature are achieved.
Digital Object Identifier (DOI): 10.1088/1367-2630/10/5/053030
Handle: http://hdl.handle.net/11392/527304
Appare nelle tipologie:03.1 Articolo su rivista

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