biostudies-literatureUnknown64(9)Tucker TDHeteroanionic oxides are attractive for their structural versatility and property tunability. In this work, we report on optoelectronic properties in epitaxial oxyfluoride SrCo(O,F)<sub>3-<i>x</i></sub> films synthesized on multiple (001)-oriented perovskite substrates. Topochemical fluorination was conducted on the as-grown SrCoO<sub>2.5</sub> films at 200 °C using vapor from poly(vinylidene fluoride) (PVDF) as the fluoride source, producing films with a nominal SrCoO<sub>2.2</sub>F<sub>0.6</sub> composition. Uniform fluoride insertion in each film was confirmed via depth-dependent elemental analysis, performed with X-ray photoelectron spectroscopy (XPS). Fluoride incorporation results in an expansion of the <i>c</i>-axis parameter, an increase in resistivity, and a blue-shift of the optiInorganic chemistry4483-4490https://www.ebi.ac.uk/biostudies/studies/S-EPMC11898045biostudies-literatureSubstrate-Dependent Optical Blue-Shift upon F Incorporation in Oxyfluoride SrCo(O,F)<sub>3-<i>x</i></sub> Films.PMC11898045May SJYang ZMarrero-Hernandez GADutta RTucker TDBugallo DLaxmeesha PMfalseSubstrate-Dependent Optical Blue-Shift upon F Incorporation in Oxyfluoride SrCo(O,F)<sub>3-<i>x</i></sub> Films.Heteroanionic oxides are attractive for their structural versatility and property tunability. In this work, we report on optoelectronic properties in epitaxial oxyfluoride SrCo(O,F)<sub>3-<i>x</i></sub> films synthesized on multiple (001)-oriented perovskite substrates. Topochemical fluorination was conducted on the as-grown SrCoO<sub>2.5</sub> films at 200 °C using vapor from poly(vinylidene fluoride) (PVDF) as the fluoride source, producing films with a nominal SrCoO<sub>2.2</sub>F<sub>0.6</sub> composition. Uniform fluoride insertion in each film was confirmed via depth-dependent elemental analysis, performed with X-ray photoelectron spectroscopy (XPS). Fluoride incorporation results in an expansion of the <i>c</i>-axis parameter, an increase in resistivity, and a blue-shift of the opti2025-01-01T00:00:00Z2025 Mar2025-04-04T09:07:55.496Z2025-04-04T09:07:55.496ZS-EPMC118980454001345110.1021/acs.inorgchem.4c05324