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. 2015 Jul 6;5:10784. doi: 10.1038/srep10784

Table 2. Comparison of Various Oxide Semiconductors in Ethanol Vapor Sensing.

Materials Ethanol Concentration(ppm) Working Temperature(oC) Response Time(s) Recovery Time(s) Reference
LBCO Thin Films 100 375 29 16 This paper
Co3O4 Nanofibers 100 336 22.7 2.4 43
Co3O4: Nanosheets, Nanorods, Nanocubes 100 400 66, 29, 49 10–13 45
α-Fe2O3 Hollow Sea Urchin-like Structures 21–2100 350 7–21 11–14 35
CuO Microsphere 200 400 9–17 4–17 40
NiO: Thin Films, Hollow Hemispheres 100 300 62, 49 47, 42 39
ZnO Nanorods 100 370 22 27 25
TiO2 Thick Films 300 350 128 348 28
SnO2 Thin Film 1250 350 42 88 31