一种光学氢气传感器及其设计方法

Optical hydrogen gas sensor and design method thereof

Abstract

The invention provides an optical hydrogen gas sensor and a design method of the optical hydrogen gas sensor. The design method of the optical hydrogen gas sensor comprises the following steps: depositing a gold-palladium nanostructure on a transparent substrate to form a gold-palladium nanostructure array; detecting change due to interaction of palladium and hydrogen gas by use of surface plasmon resonance of gold in the gold-palladium nanostructure array; and measuring the resonance peak by an optical instrument according to the change of the resonance peak caused by change, thereby forming the optical hydrogen gas sensor. According to the design method, the gold-palladium nanostructure is deposited on the transparent substrate to form the gold-palladium nanostructure array; as gold and palladium are closely contacted, the gold-palladium nanostructure array has high sensing sensitivity and extremely low concentration can be detected.
本发明提供一种光学氢气传感器及其设计方法,其中,光学氢气传感器的设计方法包括:将金-钯纳米结构沉积在透明基座上,形成金-钯纳米结构的阵列;利用金-钯纳米结构的阵列中金的表面等离激元共振来检测钯与氢气的相互作用而产生的变化;根据所述变化产生共振峰的变化,并通过光学仪器对所述共振峰进行测量,从而形成光学氢气传感器。本发明通过将金-钯纳米结构沉积在透明基座上,从而形成金-钯纳米结构的阵列,由于钯和金紧密接触,使得金-钯纳米结构的阵列传感灵敏度极高,能够实现极低浓度的探测。

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