Catalytic Growth of Large-Scale GaN Nanowires
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- Chen, J. & Xue, C. J. of Materi Eng and Perform (2010) 19: 1054. doi:10.1007/s11665-009-9574-8
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A novel lanthanon seed was employed as the catalyst for the growth of GaN nanowires. Large-scale GaN nanowires have been synthesized successfully through ammoniating Ga2O3/Tb films sputtered on Si(111) substrates. Scanning electron microscopy, x-ray diffraction, high-resolution transmission electron microscopy, and Fourier transform infrared spectroscopy were used to characterize the samples. The results demonstrate that the nanowires are single-crystal hexagonal wurtzite GaN. The growth mechanism of GaN nanowires is also discussed.