{"title":"Realization of High Aspect Ratio and Surface Defects in YZO Nanorods\nvia Controlling Seed Layer Thickness","authors":"N. Kaur, Sejoon Lee, D. Kim","doi":"10.11159/TANN18.119","DOIUrl":null,"url":null,"abstract":"High-aspect-ratio Y-doped ZnO (YZO) nanorods were grown vertically on YZO-seeded Si substrates by using a hydrothermal method. The aspect ratios of YZO nanorods were altered by controlling the thicknesses of as-grown and 600 oC-annealed YZO seed layers. The highest aspect ratio of YZO nanorods was observed to be ~ 49.3 by controlling the growth and in-situ etching process of 600 oC-annealed YZO seed layers. Well-aligned YZO nanorods showed a single crystalline behavior corresponding to the preferential (002) orientation of the hexagonal wurtzite structure. PL and XPS results revealed that the surface defects were significantly increased with an increase of aspect ratio of YZO nanorods grown on the thicker as-grown and 600 oC-annealed seed","PeriodicalId":211059,"journal":{"name":"Proceedings of the 2nd International Conference of Theoretical and Applied Nanoscience and Nanotechnology (TANN'18)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2nd International Conference of Theoretical and Applied Nanoscience and Nanotechnology (TANN'18)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11159/TANN18.119","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
High-aspect-ratio Y-doped ZnO (YZO) nanorods were grown vertically on YZO-seeded Si substrates by using a hydrothermal method. The aspect ratios of YZO nanorods were altered by controlling the thicknesses of as-grown and 600 oC-annealed YZO seed layers. The highest aspect ratio of YZO nanorods was observed to be ~ 49.3 by controlling the growth and in-situ etching process of 600 oC-annealed YZO seed layers. Well-aligned YZO nanorods showed a single crystalline behavior corresponding to the preferential (002) orientation of the hexagonal wurtzite structure. PL and XPS results revealed that the surface defects were significantly increased with an increase of aspect ratio of YZO nanorods grown on the thicker as-grown and 600 oC-annealed seed
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