Individual thermoelectric properties of electrodeposited bismuth telluride nanowires in polycarbonate membranes

Taehoo Chang; Sungmee Cho; Jeongmin Kim; Jonathan Schoenleber; Cedric Frantz; Nicolas Stein; Clotilde Boulanger; Wooyoung Lee

doi:10.1016/j.electacta.2015.02.105

Individual thermoelectric properties of electrodeposited bismuth telluride nanowires in polycarbonate membranes

Taehoo Chang, Sungmee Cho, Jeongmin Kim, Jonathan Schoenleber, Cedric Frantz, Nicolas Stein, Clotilde Boulanger, Wooyoung Lee

Division of Nanotechnology

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

14 Scopus citations

Abstract

In this study, we examined individual bismuth telluride nanowires (NWs) electrodeposited in polycarbonate membranes (PCM) used as sacrificial templates. It has been demonstrated that the composition of Bi₂Te₃ is controlled by the electrodeposition conditions, e.g. the applied potential. High-resolution transmission electron microscopy (HRTEM) shows that the average grain size of NWs increases with increasing Te content. Our results also reveal that the electrodeposited bismuth telluride NWs are n-type, and their electrical conductivity increases with increasing Te content. These NWs also demonstrated a maximum power factor of 195.8 mW/m·K² for the Te-rich NW (d = 162 nm) at 300 K.

Original language	English
Pages (from-to)	403-407
Number of pages	5
Journal	Electrochimica Acta
Volume	161
DOIs	https://doi.org/10.1016/j.electacta.2015.02.105
State	Published - 10 Apr 2015

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier Ltd.

Keywords

BiTe Nanowires
Grain size
Polycarbonate membranes (PCM)
Thermoelectric (TE) property

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10.1016/j.electacta.2015.02.105

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title = "Individual thermoelectric properties of electrodeposited bismuth telluride nanowires in polycarbonate membranes",

abstract = "In this study, we examined individual bismuth telluride nanowires (NWs) electrodeposited in polycarbonate membranes (PCM) used as sacrificial templates. It has been demonstrated that the composition of Bi2Te3 is controlled by the electrodeposition conditions, e.g. the applied potential. High-resolution transmission electron microscopy (HRTEM) shows that the average grain size of NWs increases with increasing Te content. Our results also reveal that the electrodeposited bismuth telluride NWs are n-type, and their electrical conductivity increases with increasing Te content. These NWs also demonstrated a maximum power factor of 195.8 mW/m·K2 for the Te-rich NW (d = 162 nm) at 300 K.",

keywords = "BiTe Nanowires, Grain size, Polycarbonate membranes (PCM), Thermoelectric (TE) property",

author = "Taehoo Chang and Sungmee Cho and Jeongmin Kim and Jonathan Schoenleber and Cedric Frantz and Nicolas Stein and Clotilde Boulanger and Wooyoung Lee",

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year = "2015",

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doi = "10.1016/j.electacta.2015.02.105",

language = "English",

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T1 - Individual thermoelectric properties of electrodeposited bismuth telluride nanowires in polycarbonate membranes

AU - Chang, Taehoo

AU - Cho, Sungmee

AU - Kim, Jeongmin

AU - Schoenleber, Jonathan

AU - Frantz, Cedric

AU - Stein, Nicolas

AU - Boulanger, Clotilde

AU - Lee, Wooyoung

PY - 2015/4/10

Y1 - 2015/4/10

N2 - In this study, we examined individual bismuth telluride nanowires (NWs) electrodeposited in polycarbonate membranes (PCM) used as sacrificial templates. It has been demonstrated that the composition of Bi2Te3 is controlled by the electrodeposition conditions, e.g. the applied potential. High-resolution transmission electron microscopy (HRTEM) shows that the average grain size of NWs increases with increasing Te content. Our results also reveal that the electrodeposited bismuth telluride NWs are n-type, and their electrical conductivity increases with increasing Te content. These NWs also demonstrated a maximum power factor of 195.8 mW/m·K2 for the Te-rich NW (d = 162 nm) at 300 K.

AB - In this study, we examined individual bismuth telluride nanowires (NWs) electrodeposited in polycarbonate membranes (PCM) used as sacrificial templates. It has been demonstrated that the composition of Bi2Te3 is controlled by the electrodeposition conditions, e.g. the applied potential. High-resolution transmission electron microscopy (HRTEM) shows that the average grain size of NWs increases with increasing Te content. Our results also reveal that the electrodeposited bismuth telluride NWs are n-type, and their electrical conductivity increases with increasing Te content. These NWs also demonstrated a maximum power factor of 195.8 mW/m·K2 for the Te-rich NW (d = 162 nm) at 300 K.

KW - BiTe Nanowires

KW - Grain size

KW - Polycarbonate membranes (PCM)

KW - Thermoelectric (TE) property

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VL - 161

SP - 403

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JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Individual thermoelectric properties of electrodeposited bismuth telluride nanowires in polycarbonate membranes

Abstract

Bibliographical note

Keywords

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