Growth of zirconia and yttria-stabilized zirconia nanorod arrays assisted by phase transition

Chih Chiang Chen, Wei Yun Cheng, Shih Yuan Lu*, Yi Feng Lin, Yung-Jung Hsu, Kai Shiun Chang, Chao Hsiang Kang, Kuo Lun Tung

*Corresponding author for this work

研究成果: Article同行評審

23 引文 斯高帕斯(Scopus)

摘要

Well-aligned, densely distributed ZrO2 nanorod arrays were fabricated using a non-catalytic, template-free metal-organic chemical vapour deposition process at a reaction temperature of 1000 °C. The reaction temperature was found to play a key role in product morphology, with particle thin films obtained at 550 °C and nanorod arrays produced at 1000 °C. Increasing the reaction temperature led to the emergence of the medium-temperature tetragonal phase from the dominant low-temperature monoclinic phase, which is advantageous for anisotropic growth necessary for the nanorod formation. With the same deposition process, yttria-stabilized zirconia nanorod arrays of polycrystalline cubic phase were fabricated by co-feeding the dopant precursor, YCl3, with the zirconia precursor, Zr(C5H 7O2)4. The present work demonstrated the first example of monoclinic to tetragonal phase-transition assisted one-dimensional (1D) growth, and the concept can be extended to the formation of 1D nanostructures of materials possessing the monoclinic-tetragonal polymorphism.

原文English
頁(從 - 到)3664-3669
頁數6
期刊CrystEngComm
12
發行號11
DOIs
出版狀態Published - 1 十一月 2010

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