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Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance
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| Title: | Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance |
| Authors: | Kamura, Atsuo Browse this author | | Masubuchi, Yuji Browse this author →KAKEN DB | | Motohashi, Teruki Browse this author | | Kikkawa, Shinichi Browse this author |
| Keywords: | Nanostructures | | Nitrides | | Crystal growth | | Optical properties | | Defects |
| Issue Date: | Mar-2017 |
| Publisher: | Elsevier |
| Journal Title: | Materials research bulletin |
| Volume: | 87 |
| Start Page: | 130 |
| End Page: | 134 |
| Publisher DOI: | 10.1016/j.materresbull.2016.11.013 |
| Abstract: | Gallium zinc oxynitride powder and its nanocrystals were obtained by nitridation of a ZnGa2O4 precursor under NH3 flow. The nitrided powder had the chemical composition of (Ga0.75Zn0.23 square(0.02)) (N0.71O0.29), where square indicates a vacancy, and showed improved crystallinity with a decrease in cationic vacancies compared to that for pristine gallium oxynitride without zinc. Gallium zinc oxynitride nanocrystals with rod-like morphology were obtained by nitridation of the oxide precursor on a NiO pellet. The nanorod crystals were several hundred nanometers wide and several micrometers long. The nanorods had a sawtooth appearance with triangular grains aligned along the length direction of the rods. The nanocrystals with a chemical composition of Ga/Zn = 0.80/0.20 exhibited a broad cathodoluminescence emission at 2.1 eV, similar to the powder products. (C) 2016 Elsevier Ltd. All rights reserved. |
| Rights: | © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/72722 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鱒渕 友治
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