Flame spray pyrolysis for sensing at the nanoscale

Progress in developing novel gas sensors based on semiconducting metal oxides (SMOX) has been hindered by the cumbersome fabrication technologies currently employed. They involve time intensive synthesis procedures for gaining sensitive materials and preparation of the inks employed for realizing se...

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Bibliographic Details
Published in:	Nanotechnology 2013-11, Vol.24 (44), p.442001-442001
Main Authors:	Kemmler, J A, Pokhrel, S, Mädler, L, Weimar, U, Barsan, N
Format:	Article
Language:	eng
Subjects:	Chemical synthesis methods Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Detection Exact sciences and technology Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Materials science Methods of nanofabrication Physics Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Summary:	Progress in developing novel gas sensors based on semiconducting metal oxides (SMOX) has been hindered by the cumbersome fabrication technologies currently employed. They involve time intensive synthesis procedures for gaining sensitive materials and preparation of the inks employed for realizing sensing layers. In this paper we review the opportunities offered by the relatively young method of flame spray pyrolysis, with which it is possible not only to synthesize a broad selection of SMOX in pure or doped form, but also to simultaneously deposit thick and highly porous gas sensitive films on a variety of substrates. In less than ten years the properties of nine base materials have been evaluated for all most relevant target gases and the obtained results are promising for future development.
ISSN:	0957-4484 1361-6528