Supplementary Material
Laser irradiation-induced α to δ phase transformation in Bi2O3 ceramics and nanowires
monitored by micro-Raman and photoluminescence spectroscopies, by M. Vila, C. Díaz-
(012)
(122)
Bi2O3 nanowires
(020)
(120)
Intensity (arb. units)
(200)
(102)
Guerra, and J. Piqueras (Applied Physics Letters)
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2 (degrees)
This figure shows a representative XRD pattern of the grown Bi2O3 nanowires. Although only
the main diffraction maxima have been indexed in the graph, all the observed peaks can be
unambiguously indexed to monoclinic -Bi2O3 (JCPDS card 041-1449).
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TEM micrograph of a Bi2O3 nanowire. The upper left inset shows a selected area diffraction
pattern of the wire, revealing its single crystalline nature. The lower right inset shows a
HRTEM image of the same nanostructure. The distances marked in the image, 5.35 Å and
5.25 Ǻ, respectively match the (100) and (011) interplanar spacings characteristic of the
monoclinic -Bi2O3 phase.
2