Thin Film TaFe, TaCo, and TaNi as Potential Optical Hydrogen Sensing Materials.

ABSTRACT: This paper studies the structural and optical properties of tantalum-iron-, tantalum-cobalt-, and tantalum-nickel-sputtered thin films both ex situ and while being exposed to various hydrogen pressures/concentrations, with a focus on optical hydrogen sensing applications. Optical hydrogen sensors require sensing materials that absorb hydrogen when exposed to a hydrogen-containing environment. In turn, the absorption of hydrogen causes a change in the optical properties that can be used to create a sensor. Here, we take tantalum as a starting material and alloy it with Fe, Co, or Ni with the aim to tune the optical hydrogen sensing properties. The rationale is that alloying with a smaller element would compress the unit cell, reduce the amount of hydrogen absorbed, and shift the pressure co

SUBMITTER: Bannenberg LJ 

PROVIDER: S-EPMC11465479 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature