Chen C.-C.Cheng W.-Y.Lu S.-Y.Lin Y.-F.Hsu Y.-J.Chang K.-S.Kang C.-H.Tung K.-L.2019-05-242019-05-24201014668033https://scholars.lib.ntu.edu.tw/handle/123456789/410473Well-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 ¢XC. The reaction temperature was found to play a key role in product morphology, with particle thin films obtained at 550 ¢XC and nanorod arrays produced at 1000 ¢XC. 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. ? 2010 The Royal Society of Chemistry.journal article10.1039/c000728e2-s2.0-77958143855https://www.scopus.com/inward/record.uri?eid=2-s2.0-77958143855&doi=10.1039%2fc000728e&partnerID=40&md5=d0107449f2222620336b73e66b25e30e