期刊
ACS APPLIED MATERIALS & INTERFACES
卷 2, 期 10, 页码 2804-2812出版社
AMER CHEMICAL SOC
DOI: 10.1021/am1004943
关键词
Raman microspectroscopy; Fourier transform infrared spectroscopy; hematite; maghemite; magnetite; vapor deposition
资金
- Department of Energy, Basic Energy Sciences, Geochemistry [DE-FGO2-04ER15495]
Thin films of three iron oxide polymorphs, hematite, maghemite, and magnetite, were produced on KBr substrates using a conventional electron beam deposition technique coupled with thermal annealing. This method allowed For iron oxide thin films free from chemical precursor contaminants. The films were characterized using Fourier-transform infrared spectroscopy (FTIR), Raman microspectroscopy, and ellipsometry. These spectroscopic techniques allowed for a clear assignment of the phase of the iron oxide polymorph films produced along with an examination of the degree of crystallinity possessed by the films. The films produced were uniform in phase and exhibited decreasing crystallinity as the thickness increased from 40 to 250 nm.
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