Stretchable hydrogen sensors were fabricated from Pd nanosheets that were transferred onto a PDMS substrate. To prepare the Pd nanosheets, a Pd thin film on PDMS was first biaxially stretched and then PDMS substrate was etched off. The size of Pd nanosheets decreased as the applied strain increased and the film thickness decreased. A transfer technique was utilized to implement the stretchable hydrogen sensors. The stretchable sensors exhibited negative response behaviors upon the exposure to hydrogen gas. Interestingly, the sensors worked even under large strains up to 30%, demonstrating a potential as a high-strain-tolerable hydrogen sensor for the first time.

由钯纳米片制成的可拉伸氢传感器被转移到PDMS基板上。为了制备Pd纳米片，首先将PDMS上的Pd薄膜双轴拉伸，然后蚀刻掉PDMS衬底。随着施加应变的增加和膜厚度的减小，Pd纳米片的尺寸减小。利用转移技术来实现可伸展的氢传感器。可拉伸传感器在暴露于氢气后表现出负响应行为。有趣的是，这些传感器甚至在高达30％的大应变下也能正常工作，这首次证明了其作为高应变耐受性氢传感器的潜力。