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陈玉洁,翟晓宇,刘家祥.一步溶剂热法制备立方状ITO纳米粉体[J].稀有金属材料与工程(英文),2019,48(7):2358~2363.[Chen Yujie,Zhai Xiaoyu and Liu Jiaxiang.One-Step Solvothermal Synthesis of Cubic ITO Nanopowders[J].Rare Metal Materials and Engineering,2019,48(7):2358~2363.]
One-Step Solvothermal Synthesis of Cubic ITO Nanopowders
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Received:January 26, 2018  Revised:March 01, 2018
Key words: indium tin oxide  nanopowder  solvothermal method  cubic shape  resistivity
Foundation item:北京市自然科学基金资助(项目号2142025)
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Chen Yujie,Zhai Xiaoyu and Liu Jiaxiang  
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      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.