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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28651

Title: Well-Aligned IrO2 Nanocrystals
Authors: Alexandru Korotcov;Reui-San Chen;Hung-Pin Hsu;Ying-Sheng Huang;Dah-Shyang Tsai;Kwong-Kau Tiong
Contributors: NTOU:Department of Electrical Engineering
Date: 2007-01
Issue Date: 2011-10-21T02:38:50Z
Publisher: Journal of Nanomaterials
Abstract: Abstract:We review the results of synthesis of well-aligned IrO2 nanocrystals (NCs) on sapphire (SA), LiNbO3 (LNO), LiTaO3 (LTO) substrates via reactive magnetron sputtering and metal-organic chemical vapor deposition. The surface morphology and structural properties of the as-deposited NCs were characterized. Field emission scanning electron microscopy micrographs reveal that NCs grown on SA(100)/LNO(100) are vertically aligned, while the NCs on SA(012)/LTO(012) and SA(110) contain singly and doubly tilted alignments, respectively, with a tilt angle of ∼35∘ from the normal to the substrates. NCs grown on SA(001) show in-plane alignment with mosaic structure. The X-ray diffraction results indicate that the NCs are (001), (101), and (100) oriented on SA(100)/LNO(100), SA(012)/LTO(012)/SA(110), and SA(001) substrates, respectively. A strong substrate effect on the alignment of the IrO2 NCs deposition has been demonstrated. The roles of different substrates in the formation of various textures of nanocrystalline IrO2 are studied and the possible mechanisms have been discussed.
URI: http://ntour.ntou.edu.tw/handle/987654321/28651
Appears in Collections:[電機工程學系] 期刊論文

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