The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire
Abstract Plenty of researches have been performed to probe the diverse properties of ZnO nanowires, but only a few have focused on the physical properties of a single nanowire since to analyze the optical confinement and their correlation lengths along a single nanowire is difficult. In this study,...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-04-01
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| Series: | Nanoscale Research Letters |
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| Online Access: | http://link.springer.com/article/10.1186/s11671-017-2013-0 |
| _version_ | 1797720939713003520 |
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| author | Po-Hsun Shih Sheng Yun Wu |
| author_facet | Po-Hsun Shih Sheng Yun Wu |
| author_sort | Po-Hsun Shih |
| collection | DOAJ |
| description | Abstract Plenty of researches have been performed to probe the diverse properties of ZnO nanowires, but only a few have focused on the physical properties of a single nanowire since to analyze the optical confinement and their correlation lengths along a single nanowire is difficult. In this study, a single ZnO nanowire was synthesized using a Ti-assisted chemical vapor deposition (CVD) method to avoid the appearance of catalytic contamination. Confocal Raman spectroscopy is a powerful tool for probing the phonon confinement effect in a single ZnO nanowire. A confinement model was used to calculate the correlation lengths along the growth direction. The Raman mapping of ZnO nanowires was obtained by a confocal Raman spectrometer. A phonon confinement model was used to fit the Raman curves of the E2 mode and to obtain the correlation lengths along the growth direction of the ZnO nanowire. The correlation lengths are related to the phonon confined region by boundaries and/or defects. |
| first_indexed | 2024-03-12T09:26:44Z |
| format | Article |
| id | doaj.art-cfc4ca3848f0487fad05d1114f75b66e |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:26:44Z |
| publishDate | 2017-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-cfc4ca3848f0487fad05d1114f75b66e2023-09-02T14:11:50ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-04-011211810.1186/s11671-017-2013-0The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO NanowirePo-Hsun Shih0Sheng Yun Wu1Department of Physics, National Dong Hwa UniversityDepartment of Physics, National Dong Hwa UniversityAbstract Plenty of researches have been performed to probe the diverse properties of ZnO nanowires, but only a few have focused on the physical properties of a single nanowire since to analyze the optical confinement and their correlation lengths along a single nanowire is difficult. In this study, a single ZnO nanowire was synthesized using a Ti-assisted chemical vapor deposition (CVD) method to avoid the appearance of catalytic contamination. Confocal Raman spectroscopy is a powerful tool for probing the phonon confinement effect in a single ZnO nanowire. A confinement model was used to calculate the correlation lengths along the growth direction. The Raman mapping of ZnO nanowires was obtained by a confocal Raman spectrometer. A phonon confinement model was used to fit the Raman curves of the E2 mode and to obtain the correlation lengths along the growth direction of the ZnO nanowire. The correlation lengths are related to the phonon confined region by boundaries and/or defects.http://link.springer.com/article/10.1186/s11671-017-2013-0Nanocrystalline materialsConfocal Raman spectroscopyNanowire |
| spellingShingle | Po-Hsun Shih Sheng Yun Wu The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire Nanoscale Research Letters Nanocrystalline materials Confocal Raman spectroscopy Nanowire |
| title | The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire |
| title_full | The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire |
| title_fullStr | The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire |
| title_full_unstemmed | The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire |
| title_short | The Influence of Short-Range Correlation on the Phonon Confinement of a Single ZnO Nanowire |
| title_sort | influence of short range correlation on the phonon confinement of a single zno nanowire |
| topic | Nanocrystalline materials Confocal Raman spectroscopy Nanowire |
| url | http://link.springer.com/article/10.1186/s11671-017-2013-0 |
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