Influence of iron and nitrogen ion beam exposure on the gas sensing properties of CuO nanowires
作者： Orhan Sisman , Dario Zappa , Eleonora Bolli , Saulius Kaciulis , Marko Erich
DOI: 10.1016/J.SNB.2020.128579
关键词:
摘要: Abstract A precise surface decoration technique, ion implantation, was examined for tuning the p-type gas sensing properties of CuO nanowires. To understand effects size, beam energy and fluence, heavy Fe light N ions were implanted with two different energies (60, 100 keV) fluences (1 × 1013, 2.5 × 1016 ions/cm2). The morphological changes after bombardments have been tracked by a scanning electron microscope (SEM), revealing massive destruction nanowires on ion-implanted samples high fluence values. Transmission microscopy (TEM) provided closer look single nanowires, highlighting size mass ions. reduction peaks intensities registered in GI-XRD profiles shifts Cu 2p X-ray photoemission spectra (XPS) suggest that monoclinic crystal structure transformed to amorphous Cu2O Cu(OH)2 implantations. All sensors improved their abilities compared pristine towards various concentrations target gases (hydrogen, ethanol, acetone) at 400 °C dry air flows. In presence humid air, showed characteristics related outcomes surface-ion interactions.
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