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  • Self-limiting growth of metal fluoride thin films by oxidation reactions employing molecular precursors

Self-limiting growth of metal fluoride thin films by oxidation reactions employing molecular precursors

Physical review letters (2000-09-06)
Qiu, Lai, Yarmoff
ABSTRACT

FeF (2) films are grown by the reaction of XeF (2) and SeF (6) with iron foil. The growth initially follows the Mott-Cabrera parabolic rate law, indicating that the process is diffusion limited. At a certain film thickness, however, the growth abruptly stops, with the thickness using XeF (2) being nearly double that with SeF (6). It is suggested that the shutdown is due to the inability of the molecules to dissociate when too far from the substrate and that SeF (6) must approach more closely than XeF (2). This work suggests the use of molecular precursors to grow thin films via a self-limiting chemical process.

MATERIALS
Product Number
Brand
Product Description

Iron, foil, not light tested, 100x100mm, thickness 0.006mm, 99.85%
Iron, foil, 150x150mm, thickness 2.0mm, as rolled, armco« soft ingot 99.8%
Iron, foil, not light tested, 50x50mm, thickness 0.003mm, 99.85%
Iron, foil, 100x100mm, thickness 0.125mm, as rolled, 99.99+%
Iron, foil, light tested, 25x25mm, thickness 0.075mm, hard, 99.5%
Iron, foil, 25x25mm, thickness 0.25mm, hard, 99.5%
Iron, foil, 300x300mm, thickness 0.20mm, hard, 99.5%
Iron, foil, 10mm disks, thickness 0.003mm, 99.85%
Iron, foil, 50x50mm, thickness 0.125mm, as rolled, 99.99+%
Iron, foil, 150x150mm, thickness 0.38mm, hard, 99.5%
Iron, foil, 100x100mm, thickness 0.15mm, hard, 99.5%
Iron, foil, 50x50mm, thickness 0.9mm, as rolled, 99.5%
Iron, foil, 300x300mm, thickness 0.25mm, hard, 99.5%
Iron, foil, 0.5m coil, thickness 0.038mm, hard, 99.5%
Iron, foil, 25x25mm, thickness 1.5mm, as rolled, 99.5%
Iron, foil, 10mm disks, thickness 0.004mm, 99.99+%
Iron, foil, 50x50mm, thickness 0.15mm, hard, 99.5%
Iron, foil, 25x25mm, thickness 1.0mm, as rolled, 99.5%
Iron, foil, 10m coil, thickness 0.25mm, hard, 99.5%
Iron, foil, 10mm disks, thickness 0.0125mm, 99.85%
Iron, foil, 100x100mm, thickness 2.0mm, as rolled, armco« soft ingot 99.8%
Iron, foil, 10m coil, thickness 0.5mm, hard, 99.5%
Iron, foil, 50x50mm, thickness 2mm, as rolled, 99.99+%
Iron, foil, 0.5m coil, thickness 0.5mm, coil width 49mm, armco« soft ingot 99.8+%
Iron, foil, 50x50mm, thickness 0.20mm, hard, 99.5%
Iron, foil, 50x50mm, thickness 0.5mm, hard, 99.5%
Iron, foil, 0.5m coil, thickness 0.025mm, hard, 99.5%
Iron, foil, 25x25mm, thickness 0.20mm, hard, 99.5%
Iron, foil, 150x150mm, thickness 0.125mm, hard, 99.5%
Iron, foil, 10m coil, thickness 0.038mm, hard, 99.5%