Abstract
We report the synthesis of single-crystalline α-Fe2O3 nanoflakes from a simple Fe–air reaction within the temperatures range of 260–400 °C. The nanoflakes synthesized at the lowest temperature (260 °C) in this work show an ultra-sharp morphology: 5–10 nm in thickness, 1–2 μm in length, 20 nm in base-width and around 5 nm at the tips; successfully demonstrate the promising electron field emission properties of a large-scaled α-Fe2O3 nanostructure film and exhibit the potential applications as future field-emission (FE) electron sources and displays (FEDs). The formation and growth of α-Fe2O3 nanostructures were discussed based on the surface diffusion mechanism.
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79.60.Jv; 79.70.+q; 77.84.Bw
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Zheng, Z., Chen, Y., Shen, Z. et al. Ultra-sharp α-Fe2O3 nanoflakes: growth mechanism and field-emission. Appl. Phys. A 89, 115–119 (2007). https://doi.org/10.1007/s00339-007-4180-9
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DOI: https://doi.org/10.1007/s00339-007-4180-9