On the selectivity of nanostructured semiconductor gas sensors | Zendy

Heszler P. | Zendy; Ionescu R. | Zendy; Llobet E. | Zendy; Reyes L. F. | Zendy; Smulko J. M. | Zendy; Kish L. B. | Zendy; Granqvist C. G. | Zendy

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On the selectivity of nanostructured semiconductor gas sensors

Author(s) -

Heszler P.,

Ionescu R.,

Llobet E.,

Reyes L. F.,

Smulko J. M.,

Kish L. B.,

Granqvist C. G.

Publication year - 2007

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200776183

Subject(s) - selectivity , nanoporous , resistive touchscreen , semiconductor , materials science , doping , nanotechnology , nanoparticle , optoelectronics , sensitivity (control systems) , analytical chemistry (journal) , chemical engineering , chemistry , electronic engineering , chromatography , organic chemistry , computer science , catalysis , engineering , computer vision

Different methods are presented for improving chemical selectivity and sensitivity of semiconductor gas sensors consisting of nanostructured thin films. Pure and doped WO 3 nanoparticles, forming nanoporous layers, are used as test material. The chemical selectivity is increased by applying different operating temperatures, using temperature modulation and pattern recognition methods, and by a fluctuation enhanced spectroscopy technique. The selectivity improvement of a fluctuation enhanced sensor is compared to that of a classical resistive sensor. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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