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Selective patterned growth of ZnO nanowires/nanosheets and their photoluminescence properties

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/72124

Title: Selective patterned growth of ZnO nanowires/nanosheets and their photoluminescence properties
Authors: Chen, Kai Browse this author
Thang, Dao D. Browse this author
Ishii, Satoshi Browse this author
Sugavaneshwa, Ramu P. Browse this author
Nagao, Tadaaki Browse this author →KAKEN DB
Issue Date: 1-Feb-2015
Journal Title: Optical Materials Express
Volume: 5
Issue: 2
Start Page: 353
End Page: 360
Publisher DOI: 10.1364/OME.5.000353
Abstract: Zinc oxide (ZnO) demonstrates promising applications in photocatalysis, photodetectors and light-emitting devices. The shape of the ZnO nanoparticles plays an important role in determining their mechanical and optical properties. Here we report facile and controllable synthesis of ZnO nanowires and nanosheets with hydrothermal synthesis on patterned aluminum substrates prepared by colloidal lithography. The nanowire areas and nanosheet areas were well-defined in micron scale and they displayed dramatically different photoluminescence properties: while nanowires showed strong band-edge emission at 382 nm with a moderate orange emission at 600 nm, nanosheets only showed broad and intense green emission in the 547 nm range. The method demonstrated here enables periodic ZnO nanowire/nanosheet patterning with well-controlled morphology and luminescence property, which would provide a large-scale facile fabrication technique to tailor the substrate’s optical properties by using ZnO as the only constituent oxide component.
Rights: © 2015 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Type: article
URI: http://hdl.handle.net/2115/72124
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長尾 忠昭

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