HYDROGEN DETECTION BASED ON COLORATION OF ANODIC TUNGSTEN-OXIDE FILM

被引：88

作者：

ITO, K

OHGAMI, T

机构：

[1] Department of Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University, Nagano 380

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 08期

关键词：

D O I：

10.1063/1.106467

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A novel metbod for detecting bydrogen was developed by using very thin palladium overlayer-anodic oxide film-tungsten sheet structure. Its optical reflectance is modulated by the presence of hydrogen in the ambient gas. The effect can be explained by the free electron modulation of optical constants of the oxide film. It is a prerequisite for fast hydrogen detection that the film consists of bydrated tungsten oxide WO3.H2O. The present hydrogen detector has optical readouts compatible to both thin film micro-optics and fiber optics.

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页码：938 / 940

页数：3

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