| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for detecting an electron donating gas to be detected such as carbon monoxide, nitrogen monoxide, using an optical detecting membrane for the electron donating gas which is constituted only of a transition metal oxide without adding a second component, and eliminating the point at issue of a conventional technique. SOLUTION: In the method for optically detecting the electron donating gas, a transition metal oxide membrane comprising primary particles with a particle size of 1-50 nm or particles with a particle size of 500 nm or below obtained by flocculating the primary particles is formed on a substrate by performing laser ablation in a rare gas using a transition metal oxide target and heated to 250-400°C to detect the electron donating gas. By this constitution, the transition metal oxide nano-microcrystal membrane is formed by the laser ablation method using the single crystal of the transition metal oxide or a sintered body thereof as a target without adding the second component to obtain effect to detect the electron donating gas to be detected such as carbon monoxide, nitrogen monoxide by utilizing a change in the excellent light transmissivity of the membrane. COPYRIGHT: (C)2005,JPO&NCIPI
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