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Journal of materials science. Materials in electronics, 2015-07, Vol.26 (7), p.4698-4707
Ort / Verlag
New York: Springer US
Erscheinungsjahr
2015
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
As a typical n-type semiconductor, WO
3
is considered to be the promising material to fabricate the gas sensor, which has a widespread utilization in the environment detecting and the safety monitoring. This review details the different structures of WO
3
synthesized in recent studies, classifying them into five sections according to their dimensionality, then elucidates the research progress of the gas sensitivity towards H
2
, CO, H
2
S, NH
3
, NO
x
, O
3
as well as some organic gases, based on which two models are proposed to explain the corresponding gas sensing mechanisms. Besides these, some unsolved problems and possible future directions are also discussed.