Ultrafast Spectroscopy and Red Emission from β-Ga2O3/β-Ga2S3 Nanowires
dc.contributor.author | Othonos, K. M. | en |
dc.contributor.author | Zervos, Matthew | en |
dc.contributor.author | Christofides, C. | en |
dc.contributor.author | Othonos, A. | en |
dc.creator | Othonos, K. M. | en |
dc.creator | Zervos, Matthew | en |
dc.creator | Christofides, C. | en |
dc.creator | Othonos, A. | en |
dc.date.accessioned | 2019-05-06T12:24:15Z | |
dc.date.available | 2019-05-06T12:24:15Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/48675 | |
dc.description.abstract | Ultrafast pump-probe and transient photoluminescence spectroscopy were used to investigate carrier dynamics in β-Ga2O3 nanowires converted to β-Ga2O3/Ga2S3 under H2S between 400 to 600 °C. The β-Ga2O3 nanowires exhibited broad blue emission with a lifetime of 2.4 ns which was strongly suppressed after processing at 500–600 °C giving rise to red emission centered at 680 nm with a lifetime of 19 μs. Differential absorption spectroscopy reveals that state filling occurs in states located below the conduction band edge before sulfurization, but free carrier absorption is dominant in the β-Ga2O3/Ga2S3 nanowires processed at 500 to 600 °C for probing wavelengths >500 nm related to secondary excitation of the photo-generated carriers from the mid-gap states into the conduction band of Ga2S3. © 2015, Othonos et al. | en |
dc.language.iso | eng | en |
dc.source | Nanoscale Research Letters | en |
dc.subject | β-Ga<inf>2</inf>O<inf>3</inf>/Ga<inf>2</inf>S<inf>3</inf> nanowires | el |
dc.subject | Conduction bands | en |
dc.subject | Nanowires | en |
dc.subject | Photoluminescence | en |
dc.subject | Carrier dynamics | en |
dc.subject | Excited states | en |
dc.subject | Photogenerated carriers | en |
dc.subject | Probes | en |
dc.subject | Pump-probe spectroscopy | en |
dc.subject | Absorption spectroscopy | en |
dc.subject | Free carrier absorption | en |
dc.subject | Differential absorption spectroscopy | en |
dc.subject | Blue emission | en |
dc.subject | Conduction band edge | en |
dc.subject | Gallium | en |
dc.subject | Photoluminescence spectroscopy | en |
dc.subject | Ultra-fast spectroscopies | en |
dc.title | Ultrafast Spectroscopy and Red Emission from β-Ga2O3/β-Ga2S3 Nanowires | el |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1186/s11671-015-1016-y | |
dc.description.volume | 10 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering | |
dc.type.uhtype | Article | en |
dc.contributor.orcid | Zervos, Matthew [0000-0002-6321-233X] | |
dc.gnosis.orcid | 0000-0002-6321-233X |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |