SEM/TEM of the Month
Staff -- Semiconductor International, 7/1/2004
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This nanoforest was produced from GaP, by a sequential-seeding process. As noted by Kimberly Dick, a student in the Solid State Physics department at Lund University (Lund, Sweden), the tree trunks were grown epitaxially in MOVPE in the [111]B direction on GaP (111)B substrates; the nanowires were seeded by gold nanoparticles produced by electron-beam lithography in an array pattern. To produce the branches, gold aerosol nanoparticles were deposited onto the trunks; second-generation nanowires were then grown in MOVPE in the other three symmetry-related <111>B directions. The image was taken at 12,000× magnification.
Please send submissions for SEM/TEM of the Month to Peter Singer, Editor-in-Chief, 58 Summer St., Andover, MA 01810 USA.
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