教師資料查詢 | 類別: 期刊論文 | 教師: 杜昭宏CHAO-HUNG DU (瀏覽個人網頁)

標題:Growth and characterization of V-shaped IrO2 nanowedges via metal-organic vapor deposition
學年97
學期1
出版(發表)日期2008/11/01
作品名稱Growth and characterization of V-shaped IrO2 nanowedges via metal-organic vapor deposition
作品名稱(其他語言)
著者Chen, C. A.; Chen, Y. M.; Huang, Y. S.; Tsai, D. S.; Tiong, K. K.; Du, C. H.
單位淡江大學物理學系
出版者Bristol: Institute of Physics Publishing Ltd.
著錄名稱、卷期、頁數Nanotechnology 19(46), pp.465607(5 pages)
摘要We report in detail the synthesis and characterization of V-shaped IrO2 nanowedges (NWs) with an angle of 110° between the two arms. The NWs were grown on top of rutile (R) phase TiO2 nanorods (NRs) sitting on a sapphire (SA)(100) substrate via metal-organic chemical vapor deposition (MOCVD) by using (C6H7)(C8H12)Ir and titanium-tetraisopropoxide (TTIP, Ti[OCH(CH3)2]4) as the source reagents. The surface morphology, structural, and spectroscopic properties of the as-deposited nanocrystals (NCs) were characterized by field emission scanning electron microscopy (FESEM), x-ray diffraction (XRD), micro-Raman spectroscopy, transmission electron microscopy (TEM), and selected-area electron diffractometry (SAED). The FESEM images and XRD patterns indicated growth of V-shaped IrO2(101) NWs on top of R-TiO2 NRs. The Raman spectrum showed the nanosize induced redshift and peak broadening of the IrO2 and rutile phase of TiO2 signatures with respect to that of the bulk counterparts. TEM and SAED characterizations of IrO2 NCs showed that the nanowedges were crystalline IrO2 with a twin plane of (101) and twin direction of at the V-junction. The probable mechanisms for the formation of well-aligned IrO2 NWs are discussed.
關鍵字
語言英文
ISSN0957-4484
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別英國
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