Growth of anodic aluminum oxide templates and the application in fabrication of the BiSbTe-based thermoelectric nanowires

Chin-Guo Kuo, Yuan Tai Hsieh, Cheng Fu Yang, Ching Ho Huang, Chia Ying Yen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A two-step electrochemical anodization was used to form the anodic aluminum oxide (AAO) thin films with nanotube arrays of self-organized honeycomb structure. Al foil was anodized in 10% sulfuric acid (H2SO 4) and 3% oxalic acid (H2C2O4) at 25°C at constant voltage of 40 V for 60 min for two times. Ethylene glycol (C2H6O2) was used as a solution and 0.3 M potassium iodide (KI) was used to improve the solution's conductivity. Different electrolyte concentrations of Bi(NO3)3-5H2O, SbCl3, and TeCl4 were added into KI-C2H 6O2 solution and the cyclic voltammetry experiment was used to find the reduced voltages of Bi3+, Sb3+, and Te4+ ions. The potentiostatic deposition and pulse electrodeposition (PED) processes were used to deposit the (Bi,Sb)2-xTe 3+x-based materials. Field-emission scanning electron microscope and energy dispersive spectrometers were used to analyze the compositions of the deposited (Bi,Sb)2-xTe3+x-based materials. After finding the optimal deposition parameter of the PED process the AAO nanotube arrays were used as the templates to deposit the (Bi,Sb)2-xTe 3+x-based thermoelectric nanowires.

Original languageEnglish
Article number978184
JournalInternational Journal of Photoenergy
Volume2014
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Aluminum Oxide
Nanowires
nanowires
templates
aluminum oxides
Aluminum
Electrodeposition
Fabrication
electrodeposition
Nanotubes
fabrication
Oxides
nanotubes
Deposits
deposits
Potassium iodide
potassium iodides
Honeycomb structures
Potassium Iodide
honeycomb structures

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

Growth of anodic aluminum oxide templates and the application in fabrication of the BiSbTe-based thermoelectric nanowires. / Kuo, Chin-Guo; Hsieh, Yuan Tai; Yang, Cheng Fu; Huang, Ching Ho; Yen, Chia Ying.

In: International Journal of Photoenergy, Vol. 2014, 978184, 01.01.2014.

Research output: Contribution to journalArticle

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