Diameter and composition modulated bismuth telluride nanowires by galvanic displacement reaction of segmented NiFe nanowires

Hoyoung Suh; Hyunsung Jung; Carlos M. Hangarter; Hosik Park; Youngin Lee; Yongho Choa; Nosang V. Myung; Kimin Hong

doi:10.1016/j.electacta.2012.04.090

Diameter and composition modulated bismuth telluride nanowires by galvanic displacement reaction of segmented NiFe nanowires

Hoyoung Suh, Hyunsung Jung, Carlos M. Hangarter, Hosik Park, Youngin Lee, Yongho Choa, Nosang V. Myung, Kimin Hong

Dept. of Materials Science & Engineering

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

9 Scopus citations

Abstract

Dumbbell-like BiTe nanowires with segmentally tailored composition and dimension were synthesized by galvanic displacement reaction of multi-segmented NiFe nanowires with Ni-rich and Fe-rich segments. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. For examples, the bismuth content in Bi _xTe _1-x adjusted from 32 to 60 at.% by controlling the Fe content in NiFe sacrificial nanowires. The ability to tune the dimension of segments was demonstrated by the diameter variation from 99 to 551 nm with the segment length from 97 nm to 1 μm.

Original language	English
Pages (from-to)	201-207
Number of pages	7
Journal	Electrochimica Acta
Volume	75
DOIs	https://doi.org/10.1016/j.electacta.2012.04.090
State	Published - 30 Jul 2012

Keywords

Bismuth telluride
Dumbbell-like structure
Galvanic displacement reaction
Nanowires
NiFe

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10.1016/j.electacta.2012.04.090

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title = "Diameter and composition modulated bismuth telluride nanowires by galvanic displacement reaction of segmented NiFe nanowires",

abstract = "Dumbbell-like BiTe nanowires with segmentally tailored composition and dimension were synthesized by galvanic displacement reaction of multi-segmented NiFe nanowires with Ni-rich and Fe-rich segments. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. For examples, the bismuth content in Bi xTe 1-x adjusted from 32 to 60 at.\% by controlling the Fe content in NiFe sacrificial nanowires. The ability to tune the dimension of segments was demonstrated by the diameter variation from 99 to 551 nm with the segment length from 97 nm to 1 μm.",

keywords = "Bismuth telluride, Dumbbell-like structure, Galvanic displacement reaction, Nanowires, NiFe",

author = "Hoyoung Suh and Hyunsung Jung and Hangarter, \{Carlos M.\} and Hosik Park and Youngin Lee and Yongho Choa and Myung, \{Nosang V.\} and Kimin Hong",

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doi = "10.1016/j.electacta.2012.04.090",

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T1 - Diameter and composition modulated bismuth telluride nanowires by galvanic displacement reaction of segmented NiFe nanowires

AU - Suh, Hoyoung

AU - Jung, Hyunsung

AU - Hangarter, Carlos M.

AU - Park, Hosik

AU - Lee, Youngin

AU - Choa, Yongho

AU - Myung, Nosang V.

AU - Hong, Kimin

PY - 2012/7/30

Y1 - 2012/7/30

N2 - Dumbbell-like BiTe nanowires with segmentally tailored composition and dimension were synthesized by galvanic displacement reaction of multi-segmented NiFe nanowires with Ni-rich and Fe-rich segments. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. For examples, the bismuth content in Bi xTe 1-x adjusted from 32 to 60 at.% by controlling the Fe content in NiFe sacrificial nanowires. The ability to tune the dimension of segments was demonstrated by the diameter variation from 99 to 551 nm with the segment length from 97 nm to 1 μm.

AB - Dumbbell-like BiTe nanowires with segmentally tailored composition and dimension were synthesized by galvanic displacement reaction of multi-segmented NiFe nanowires with Ni-rich and Fe-rich segments. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. The composition and dimension of each segment were determined by the tuned sacrificial segments to control the galvanic displacement reaction rate. For examples, the bismuth content in Bi xTe 1-x adjusted from 32 to 60 at.% by controlling the Fe content in NiFe sacrificial nanowires. The ability to tune the dimension of segments was demonstrated by the diameter variation from 99 to 551 nm with the segment length from 97 nm to 1 μm.

KW - Bismuth telluride

KW - Dumbbell-like structure

KW - Galvanic displacement reaction

KW - Nanowires

KW - NiFe

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U2 - 10.1016/j.electacta.2012.04.090

DO - 10.1016/j.electacta.2012.04.090

M3 - Article

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SN - 0013-4686

VL - 75

SP - 201

EP - 207

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Diameter and composition modulated bismuth telluride nanowires by galvanic displacement reaction of segmented NiFe nanowires

Abstract

Keywords

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