dc.contributor.author | Zervos, Matthew | en |
dc.contributor.author | Karipi, C. | en |
dc.contributor.author | Othonos, Andreas S. | en |
dc.creator | Zervos, Matthew | en |
dc.creator | Karipi, C. | en |
dc.creator | Othonos, Andreas S. | en |
dc.date.accessioned | 2019-12-02T15:34:48Z | |
dc.date.available | 2019-12-02T15:34:48Z | |
dc.date.issued | 2012 | |
dc.identifier.issn | 1931-7573 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/59223 | |
dc.description.abstract | ZnO nanowires (NWs) with diameters of 50 to 250 nm and lengths of several micrometres have been grown by reactive vapour transport via the reaction of Zn with oxygen on 1 nm Au/Si(001) at 550°C under an inert flow of Ar. These exhibited clear peaks in the X-ray diffraction corresponding to the hexagonal wurtzite crystal structure of ZnO and a photoluminescence spectrum with a peak at 3.3 eV corresponding to band edge emission close to 3.2 eV determined from the abrupt onset in the absorption-transmission through ZnO NWs grown on 0.5 nm Au/quartz. We find that the post growth nitridation of ZnO NWs under a steady flow of NH 3 at temperatures ≤600°C promotes the formation of a ZnO/Zn 3N 2 core-shell structure as suggested by the suppression of the peaks related to ZnO and the emergence of new ones corresponding to the cubic crystal structure of Zn 3N 2 while maintaining their integrity. Higher temperatures lead to the complete elimination of the ZnO NWs. We discuss the effect of nitridation time, flow of NH 3, ramp rate and hydrogen on the conversion and propose a mechanism for the nitridation. © 2012 Zervos et al. | en |
dc.source | Nanoscale Research Letters | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859397945&doi=10.1186%2f1556-276X-7-175&partnerID=40&md5=916c40a61e0431aae1eb12798fbb0af3 | |
dc.subject | Hexagonal wurtzite | de |
dc.subject | Hydrogen | en |
dc.subject | Crystal structure | en |
dc.subject | X ray diffraction | en |
dc.subject | Nitrides | en |
dc.subject | Nanowires | en |
dc.subject | Zinc oxide | en |
dc.subject | ZnO | en |
dc.subject | Band-edge emissions | en |
dc.subject | Nitridation | en |
dc.subject | Zinc sulfide | en |
dc.subject | Photoluminescence spectrum | en |
dc.subject | Ramp rates | en |
dc.subject | Zinc | en |
dc.subject | Cubic crystal structures | en |
dc.subject | Zinc nitride | en |
dc.subject | Core shell structure | en |
dc.subject | Higher temperatures | en |
dc.subject | Nitridation time | en |
dc.subject | Vapour transport | en |
dc.subject | Zinc oxide (ZnO) | en |
dc.subject | ZnO nanowires | en |
dc.subject | ZnO NWs | en |
dc.title | The nitridation of ZnO nanowires | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1186/1556-276X-7-175 | |
dc.description.volume | 7 | |
dc.description.startingpage | 1 | |
dc.description.endingpage | 8 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :1</p> | en |
dc.source.abbreviation | Nanoscale Res.Lett. | en |
dc.contributor.orcid | Zervos, Matthew [0000-0002-6321-233X] | |
dc.contributor.orcid | Othonos, Andreas S. [0000-0003-0016-9116] | |
dc.gnosis.orcid | 0000-0002-6321-233X | |
dc.gnosis.orcid | 0000-0003-0016-9116 | |