Pd Nanoparticle Film on a Polymer Substrate for Transparent and Flexible Hydrogen Sensors

• DOI: 10.1021/acsami.8b15445
• Publication Date: 2018-12-04T10:17:15Z
• Authors: Bo Xie; Peng Mao; Minrui Chen; Zhaoguo Li; Juanjuan Han; Lun Yang; Xiuzhang Wang; Min Han; Jun-Ming Liu; Guanghou Wang
• Keywords: Response time; Flexible display; Polymer substrate

Alongside the rise in fully automated equipment and wearable devices, there is currently a high demand for optically transparent flexible gas sensors operating at room temperature. Nanoparticle films are ideal H2-sensing materials that can be coupled with substrates because of their discrete nanogranular structure unique interparticle electrical responsiveness. In this work, we present an H2 sensor based on Pd nanoparticle film, prepared polyethylene terephthalate sheet using straightforward nanocluster deposition technique. Hundreds bending cycles demonstrated has good stability mechanical robustness without significant degradation performance. The behaviors under bent state were systematically evaluated. loading tensile compressive strains produced positive negative influence, respectively, sensing performances. possible influence mechanism performance was attributed to changes percolation network topology space induced by strains. ability detect concentration as low 15 ppm, dynamic response range wide 0-10%, sub-10 s time achieved. addition, operated relative humidity 0-90% These results demonstrate exhibits potential next-generation detectors.