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Effects of a low-temperature sulfidation process on the microstructural properties of ZnO nanowires: ZnS formation and nanoscale Kirkendall effect

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Title
Effects of a low-temperature sulfidation process on the microstructural properties of ZnO nanowires: ZnS formation and nanoscale Kirkendall effect
Author(s)
Ahn H.B.; Lee J.Y.
Publication Date
2013-09
Journal
CRYSTENGCOMM, v.15, no.34, pp.6709 - 6714
Publisher
ROYAL SOC CHEMISTRY
Abstract
We report on the microstructural characterization of ZnO nanowires during a low-temperature sulfidation process. The morphology of ZnO-ZnS core-shell nanowires obtained for different reaction times was observed. After sulfidation, two different interfaces were observed between the crystalline ZnO core and nanostructured ZnS shell. One is flat {1010} planes covered with a dense ZnS NP layer and the other is rough {1010} planes covered with two porous layers of ZnO and ZnS NPs. Voids were formed inside the crystalline ZnO core, resulting in Kirkendall voids with a hexagonal shape and six symmetrically located {1010} planes, which have lower surface energy compared to {1120}. It is believed that these Kirkendall voids are considerably affected by surface energy. © 2013 The Royal Society of Chemistry.
URI
https://pr.ibs.re.kr/handle/8788114/1404
ISSN
1466-8033
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
41_IBS CA1301-3_15-01_6709_CrystEngComm_Effects of a low-temperature sulfidation process on the microstructural properties of ZnO nanowires.pdfDownload

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