Using anodic aluminum oxide templates and electrochemical method to deposit BiSbTe-based thermoelectric nanowires

Hsin Hui Kuo, Chin Guo Kuo, Chia Ying Yen, Cheng Fu Yang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, the cyclic voltammetry method was first used to find the reduced voltages and anodic peaks of Bi3+, Sb3+, and Te4+ ions as the judgments for the growth of the (Bi,Sb)2 - x Te3 + x-based materials. Ethylene glycol (C2H6O2) was used as a solvent, and 0.3 M potassium iodide (KI) was used to improve the conductivity of the solution. Two different electrolyte formulas were first used: (a) 0.01 M Bi(NO3)3-5H2O, 0.01 M SbCl3, and 0.01 M TeCl4 and (b) 0.015 M Bi(NO3)3-5H2O, 0.005 M SbCl3, and 0.0075 M TeCl4. The potentiostatic deposition process was first used to find the effect of reduced voltage on the variation of compositions of the (Bi,Sb)2 - xTe3 + x-based materials. After finding the better reduced voltage, 0.01 M Bi(NO3)3-5H2O, 0.01 M SbCl3, and 0.01 M TeCl4 were used as the electrolyte formula. The pulse deposition process was successfully used to control the composition of the (Bi,Sb)2 - xTe3 + x-based materials and grow the nanowires in anodic aluminum oxide (AAO) templates.

Original languageEnglish
Article number63
Pages (from-to)1-7
Number of pages7
JournalNanoscale Research Letters
Volume9
Issue number1
DOIs
Publication statusPublished - 2014 Dec 1

Fingerprint

Aluminum Oxide
Nanowires
nanowires
templates
Deposits
aluminum oxides
deposits
Aluminum
Electrolytes
Oxides
Electric potential
electric potential
electrolytes
Potassium iodide
potassium iodides
Potassium Iodide
Ethylene Glycol
Ethylene glycol
Chemical analysis
Cyclic voltammetry

Keywords

  • Cyclic voltammetry
  • Electrolyte formula
  • Nanowires
  • Thermoelectric

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Using anodic aluminum oxide templates and electrochemical method to deposit BiSbTe-based thermoelectric nanowires. / Kuo, Hsin Hui; Kuo, Chin Guo; Yen, Chia Ying; Yang, Cheng Fu.

In: Nanoscale Research Letters, Vol. 9, No. 1, 63, 01.12.2014, p. 1-7.

Research output: Contribution to journalArticle

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