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An Influence of X-Ray Irradiation on Mid-Bandgap Luminescence of Boron Nitride Epitaxial Layers

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cris.lastimport.scopus2024-02-12T19:40:30Z
dc.abstract.enSamples of boron nitride (BN) in the form of an exfoliated monolayer, epitaxial layers grown on sapphire, anda powder with micrometer grains were studied in a luminescence experiment connected with irradiation of sampleswith X-rays. The luminescence excited with photons with the wavelength of 488 nm was shown to span over a broadband from a filter cut-off at 550 nm to about 850 nm. The intensity of luminescence showed a monoexponentialdecrease both before and after irradiation with X-rays, but this dynamics slowed down after irradiation to an extentdependent on the X-ray dose. This indicates possible application of BN in dosimetry of X-rays. An influence ofsapphire substrates on photoluminescence dynamics was also studied. We show that this influence is very strongin the case of layers with thickness of a few nm and can be disregarded when the thickness is equal to a few tensof nm.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorSzoła, M.
dc.contributor.authorKowalski, G.
dc.contributor.authorPakuła, K.
dc.contributor.authorDąbrowska, A.
dc.contributor.authorBinder, Johannes
dc.contributor.authorWysmołek, Andrzej
dc.contributor.authorŁusakowski, Jerzy
dc.contributor.authorTokarczyk, Mateusz
dc.date.accessioned2024-01-24T16:42:49Z
dc.date.available2024-01-24T16:42:49Z
dc.date.issued2019
dc.description.financeNie dotyczy
dc.description.number4
dc.description.volume136
dc.identifier.doi10.12693/APHYSPOLA.136.620
dc.identifier.issn0587-4246
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/100917
dc.identifier.weblinkhttp://dx.doi.org/10.12693/aphyspola.136.620
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofActa Physica Polonica A
dc.relation.pages620-623
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleAn Influence of X-Ray Irradiation on Mid-Bandgap Luminescence of Boron Nitride Epitaxial Layers
dc.typeJournalArticle
dspace.entity.typePublication