Jr. Yu et al., The effect of gas concentration on optical gas sensing properties of Ag- and Pt-doped SnO2 ultrafine particle films, SENS ACTU-B, 66(1-3), 2000, pp. 286-288
The Ag- and Pt-doped SnO2 ultrafine particle films are prepared by magnetro
n sputtering equipment. The transmissivity of the films are measured in alc
ohol gas. The results indicate that the transmissivity of the doped films r
educes with increasing gas concentration. In contrast to Ag-doped films, th
e Pt-doped films show better optical gas-sensing property in a given range
of gas concentration. (C) 2000 Elsevier Science S.A. All rights reserved.