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One-Step Solvothermal Synthesis of Cubic ITO Nanopowders
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Affiliation:

Beijing Key Laboratory of Electrochemical Process and Technology for Materials,Beijing University of Chemical Technology

Clc Number:

O611

Fund Project:

The Beijing Natural Science Foundation

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    Abstract:

    Low-resistivity ITO nanocubes were successfully prepared in one step by the solvothermal method. The microstructure and electrical properties of ITO nanoparticles can be adjusted by changing solvents, reaction temperature and reaction time. The results show that the lowest electrical resistivity and the average size of ITO nanoparticles was 0.2 Ω×cm and 45.95 nm respectively when the reaction temperature and time were 250 ℃ and 24 h respectively with ethylene acohol as solvent. As reaction time was prolonged, the rod-like indium hydroxides were transformed to cubic In2O3 nanoparticles gradually through the dissolution-recrystallisation mechanism. During the formation of In2O3 nanocrystals, the growth rate perpendicular to (200) plane reduced, caused by the adsorption of glycol and tetramethyl ammonium ion on the surface of particles, which induced the formation of cubic-shaped ITO nanoparticles.

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[Chen Yujie, Zhai Xiaoyu, Liu Jiaxiang. One-Step Solvothermal Synthesis of Cubic ITO Nanopowders[J]. Rare Metal Materials and Engineering,2019,48(7):2358~2363.]
DOI:10.12442/j. issn.1002-185X.20180101

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History
  • Received:January 26,2018
  • Revised:March 01,2018
  • Adopted:June 15,2018
  • Online: August 01,2019
  • Published: