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Updated: May 21, 2026
Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
Published on: June 18, 2013
Native-oxide-based selective area growth of InP nanowires via metal-organic molecular beam epitaxy mediated by
Yonatan Calahorra1, Yaakov Greenberg, Shimon Cohen
1Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel. yoncal@tx.technion.ac.il
Abstract:
The growth of InP nanowires on an InP(111) B substrate is reported. The substrate native oxide was not removed from the surface prior to growth. Nanowires were grown at 400 °C from gold catalysts in a selective area manner, without bulk growth. Unlike SiO(2)-based metal-organic molecular beam epitaxy selective area growth, the growth reported here is mediated by surface diffusion with a characteristic diffusion length of 4 μm, about an order of magnitude larger than values for diffusion on bare substrates. A pre-growth heating treatment at 450 °C was found to increase the yield of nanowire nucleation from the gold catalysts.
