Ultra-sharp α-Fe2O3 nanoflakes: Growth mechanism and field-emission

Zhe Zheng; Yunzhong Chen; Zexiang Shen; Jan Ma; Chorng Haur Sow; Wei Huang; Ting Yu

doi:10.1007/s00339-007-4180-9

Ultra-sharp α-Fe₂O₃ nanoflakes: Growth mechanism and field-emission

Zhe Zheng, Yunzhong Chen, Zexiang Shen, Jan Ma, Chorng Haur Sow, Wei Huang, Ting Yu

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

We report the synthesis of single-crystalline α-Fe₂O ₃ 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.

源语言	英语
页（从-至）	115-119
页数	5
期刊	Applied Physics A: Materials Science and Processing
卷	89
期	1
DOI	https://doi.org/10.1007/s00339-007-4180-9
出版状态	已出版 - 10月 2007
已对外发布	是

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abstract = "We report the synthesis of single-crystalline α-Fe2O 3 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.",

author = "Zhe Zheng and Yunzhong Chen and Zexiang Shen and Jan Ma and Sow, {Chorng Haur} and Wei Huang and Ting Yu",

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T2 - Growth mechanism and field-emission

AU - Zheng, Zhe

AU - Chen, Yunzhong

AU - Shen, Zexiang

AU - Ma, Jan

AU - Sow, Chorng Haur

AU - Huang, Wei

AU - Yu, Ting

PY - 2007/10

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N2 - We report the synthesis of single-crystalline α-Fe2O 3 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.

AB - We report the synthesis of single-crystalline α-Fe2O 3 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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Ultra-sharp α-Fe2O3 nanoflakes: Growth mechanism and field-emission

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Ultra-sharp α-Fe₂O₃ nanoflakes: Growth mechanism and field-emission