Synthesis and field emission properties of topological insulator Bi 2Se 3 nanoflake arrays

Yuan Yan; Zhi Min Liao; Feng Yu; Han Chun Wu; Guangyin Jing; Zhi Cheng Yang; Qing Zhao; Dapeng Yu

doi:10.1088/0957-4484/23/30/305704

Synthesis and field emission properties of topological insulator Bi ₂Se ₃ nanoflake arrays

Yuan Yan^*, Zhi Min Liao, Feng Yu, Han Chun Wu, Guangyin Jing, Zhi Cheng Yang, Qing Zhao, Dapeng Yu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

High quality Bi ₂Se ₃ nanoflake arrays with a large area and high-yield production have been fabricated by chemical vapor deposition. As the essential candidate for a topological insulator, the unique surface electronic states are considered to play a crucial role distinct from the bulk. Our experimental results show that environmental doping significantly affects the field emission properties of the synthesized Bi ₂Se ₃ nanoflake arrays. X-ray photoelectron spectroscopy characterizations indicate that the rapid surface oxidation may prohibit the detection of the topological surface state and results in a low field emission current. This work provides another insight to investigate the surface state of topological insulator materials.

Original language	English
Article number	305704
Journal	Nanotechnology
Volume	23
Issue number	30
DOIs	https://doi.org/10.1088/0957-4484/23/30/305704
Publication status	Published - 3 Aug 2012
Externally published	Yes

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Yan, Y., Liao, Z. M., Yu, F., Wu, H. C., Jing, G., Yang, Z. C., Zhao, Q., & Yu, D. (2012). Synthesis and field emission properties of topological insulator Bi ₂Se ₃ nanoflake arrays. Nanotechnology, 23(30), Article 305704. https://doi.org/10.1088/0957-4484/23/30/305704

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abstract = "High quality Bi 2Se 3 nanoflake arrays with a large area and high-yield production have been fabricated by chemical vapor deposition. As the essential candidate for a topological insulator, the unique surface electronic states are considered to play a crucial role distinct from the bulk. Our experimental results show that environmental doping significantly affects the field emission properties of the synthesized Bi 2Se 3 nanoflake arrays. X-ray photoelectron spectroscopy characterizations indicate that the rapid surface oxidation may prohibit the detection of the topological surface state and results in a low field emission current. This work provides another insight to investigate the surface state of topological insulator materials.",

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AU - Yan, Yuan

AU - Liao, Zhi Min

AU - Yu, Feng

AU - Wu, Han Chun

AU - Jing, Guangyin

AU - Yang, Zhi Cheng

AU - Zhao, Qing

AU - Yu, Dapeng

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N2 - High quality Bi 2Se 3 nanoflake arrays with a large area and high-yield production have been fabricated by chemical vapor deposition. As the essential candidate for a topological insulator, the unique surface electronic states are considered to play a crucial role distinct from the bulk. Our experimental results show that environmental doping significantly affects the field emission properties of the synthesized Bi 2Se 3 nanoflake arrays. X-ray photoelectron spectroscopy characterizations indicate that the rapid surface oxidation may prohibit the detection of the topological surface state and results in a low field emission current. This work provides another insight to investigate the surface state of topological insulator materials.

AB - High quality Bi 2Se 3 nanoflake arrays with a large area and high-yield production have been fabricated by chemical vapor deposition. As the essential candidate for a topological insulator, the unique surface electronic states are considered to play a crucial role distinct from the bulk. Our experimental results show that environmental doping significantly affects the field emission properties of the synthesized Bi 2Se 3 nanoflake arrays. X-ray photoelectron spectroscopy characterizations indicate that the rapid surface oxidation may prohibit the detection of the topological surface state and results in a low field emission current. This work provides another insight to investigate the surface state of topological insulator materials.

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Synthesis and field emission properties of topological insulator Bi ₂Se ₃ nanoflake arrays

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