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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Three distinct hydrogen sensing responses of palladium line patterns generated by femtosecond laser direct writing
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Three distinct hydrogen sensing responses of palladium line patterns generated by femtosecond laser direct writing

机译：飞秒激光直接写入产生的钯线图案的三种不同的氢感测响应

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摘要

Application of a palladium nanostructure in hydrogen detection is a focus of current research due to its high sensitivity. In this paper, palladium nanometre films are fabricated using femtosecond laser decomposition of palladium acetate films. Their hydrogen sensing characteristics are studied as a function of hydrogen concentration and morphologies of palladium films. As palladium film morphologies vary from continuous to partially continuous and then to discontinuous, the corresponding hydrogen response changes from normal to pulse-like and then to switch-like. Their response characteristics are determined by the different combined effects of the formation of high-resistance palladium hydrogen and the corresponding narrowing of nanogaps between palladium nanoparticles.
机译：钯纳米结构在氢检测中的应用由于其高灵敏度而成为当前研究的重点。本文采用飞秒激光分解乙酸钯薄膜制备钯纳米薄膜。研究了其氢感测特性随氢浓度和钯薄膜形貌的变化。由于钯膜的形态从连续变为部分连续，然后变为不连续，相应的氢响应从正常变为脉冲状，然后变为开关状。它们的响应特性取决于高电阻钯氢的形成和钯纳米颗粒之间纳米间隙的相应变窄的不同组合效应。

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