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Formation of nanostructured TiO2 by femtosecond laser irradiation of titanium in O2
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10.1063/1.4752276
/content/aip/journal/jap/112/6/10.1063/1.4752276
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4752276
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Figures

Image of FIG. 1.
FIG. 1.

Scanning electron micrographs of titanium metal surface before (untreated) and after laser irradiation in the ambient gases shown, with a total pressure of 100 Torr in each case. The air mixture consists of a 1:4 ratio of O2:N2.

Image of FIG. 2.
FIG. 2.

(a) XPS of untreated titanium and laser-structured samples. The samples were Ar+ sputtered for 10 min immediately before measurement. (b) High resolution XPS of the Ti (2p) region of untreated and laser-structured titanium. The samples were Ar+ sputtered for 20 min before measurements.

Image of FIG. 3.
FIG. 3.

XRD of the untreated titanium and laser-structured samples. The films display only the (002) and (103) peaks expected for evaporated titanium.

Image of FIG. 4.
FIG. 4.

Raman spectra of the untreated titanium and laser-structured samples, collected from an excitation wavelength of 633 nm.

Image of FIG. 5.
FIG. 5.

(a) Open circuit measurements before and after laser irradiation collected at room temperature in a solution to simulate biocompatibility, measured vs. NHE. (b) Current density changes of untreated and laser-structured samples at 494 mV (vs. NHE).

Image of FIG. 6.
FIG. 6.

Reflectivity of samples measured with a spectrophotometer with an integrating sphere.

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/content/aip/journal/jap/112/6/10.1063/1.4752276
2012-09-18
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Formation of nanostructured TiO2 by femtosecond laser irradiation of titanium in O2
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4752276
10.1063/1.4752276
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