Probing the reaction mechanism between a laser welded polyamide thin film and titanium with XPS and ToF-SIMS

Hirchenhahn, Pierre; Sayyad, Adham Al; Bardon, Julien; Plapper, Peter; Houssiau, Laurent

doi:10.1016/j.talanta.2022.123539

Cited by 7 publications

(1 citation statement)

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“…Figure 2 b displays Ag metal binding energies at 368.48 eV and 374.48 eV [ 48 ], whereas Cu displayed binding energies at 932.48 eV and 952.28 eV, as shown in Figure 2 c [ 74 ]. Ti had binding energies at 459.48 eV and 464.98 eV [ 75 ], as shown in Figure 2 d. Interestingly, when the small chemical shifts in binding energy in Ag, Cu, and Ti NPs were compared with the binding energies of bulk Ag (368.2 eV), Cu (933 eV), and Ti (458.5 eV), a substantial electronic bond polarization between NPs and ZnO NFs could be observed.…”

Section: Resultsmentioning

confidence: 99%

Optoelectronic Enhancement of Perovskite Solar Cells through the Incorporation of Plasmonic Particles

et al. 2022

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The optoelectronic advantages of anchoring plasmonic silver and copper particles and non-plasmonic titanium particles onto zinc oxide (ZnO) nanoflower (NF) scaffolds for the fabrication of perovskite solar cells (PSCs) are addressed in this article. The metallic particles were sputter-deposited as a function of sputtering time to vary their size on solution-grown ZnO NFs on which methylammonium lead iodide perovskite was crystallized in a controlled environment. Optical absorption measurements showed impressive improvements in the light-harvesting efficiency (LHE) of the devices using silver nanoparticles and some concentrations of copper, whereas the LHE was relatively lower in devices used titanium than in a control device without any metallic particles. Fully functional PSCs were fabricated using the plasmonic and non-plasmonic metallic film-decorated ZnO NFs. Several fold enhancements in photoconversion efficiency were achieved in the silver-containing devices compared with the control device, which was accompanied by an increase in the photocurrent density, photovoltage, and fill factor. To understand the plasmonic effects in the photoanode, the LHE, photo-current density, photovoltage, photoluminescence, incident photon-to-current conversion efficiency, and electrochemical impedance properties were thoroughly investigated. This research showcases the efficacy of the addition of plasmonic particles onto photo anodes, which leads to improved light scattering, better charge separation, and reduced electron–hole recombination rate.

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Section: Resultsmentioning

confidence: 99%