dc.date.accessioned | 2020-04-20T18:12:14Z | |
dc.date.available | 2020-04-20T18:12:14Z | |
dc.date.created | 2019-09-17T20:22:13Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Kjeldstad, Torunn Thøgersen, Annett Stange, Marit Synnøve Sæverud Jensen, Ingvild Julie Thue Monakhov, Eduard Galeckas, Augustinas . Surface effects and optical properties of self-assembled nanostructured a-Si:Al. Nanomaterials. 2019, 9(8), 1-12 | |
dc.identifier.uri | http://hdl.handle.net/10852/74644 | |
dc.description.abstract | We present a study of the surface effects and optical properties of the self-assembled nanostructures comprised of vertically aligned 5 nm-diameter Al nanowires embedded in an amorphous Si matrix (a-Si:Al). The controlled (partial) removal of Al nanowires in a selective etching process yielded nanoporous a-Si media with a variable effective surface area. Different spectroscopy techniques, such as X-ray photoelectron spectroscopy (XPS), UV-Vis spectrophotometry and photoluminescence (PL), have been combined to investigate the impact of such nanostructuring on optical absorption and emission properties. We also examine long-term exposure to air ambient and show that increasing level of surface oxidation determines the oxide defect-related nature of the dominant PL emission from the nanoporous structures. The role of bulk, nanosize and surface effects in optical properties has been separated and quantified, providing a better understanding of the potential of such nanoporous a-Si:Al structures for future device developments | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Surface effects and optical properties of self-assembled nanostructured a-Si:Al | |
dc.type | Journal article | |
dc.creator.author | Kjeldstad, Torunn | |
dc.creator.author | Thøgersen, Annett | |
dc.creator.author | Stange, Marit Synnøve Sæverud | |
dc.creator.author | Jensen, Ingvild Julie Thue | |
dc.creator.author | Monakhov, Eduard | |
dc.creator.author | Galeckas, Augustinas | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1725922 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nanomaterials&rft.volume=9&rft.spage=1&rft.date=2019 | |
dc.identifier.jtitle | Nanomaterials | |
dc.identifier.volume | 9 | |
dc.identifier.issue | 8 | |
dc.identifier.doi | https://doi.org/10.3390/nano9081106 | |
dc.identifier.urn | URN:NBN:no-77757 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2079-4991 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/74644/1/nanomaterials-09-01106-v2.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 1106 | |
dc.relation.project | NFR/231658 | |
dc.relation.project | NFR/245963 | |