Long-term environmental stability of nitrogen-healed black phosphorus

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dc.contributor.authorMarangoni V.S.
dc.contributor.authorCadore A.R.
dc.contributor.authorRibeiro H.B.
dc.contributor.authorHostert L.
dc.contributor.authorde Matos C.J.S.
dc.contributor.authorSilva C.C.C.
dc.contributor.authorSeixas L.
dc.contributor.authorMaroneze C.M.
dc.date.accessioned2024-03-12T19:18:50Z
dc.date.available2024-03-12T19:18:50Z
dc.date.issued2021
dc.description.abstract© 2021 Elsevier B.V.The unique optoelectronic properties of black phosphorus (BP) have triggered great interest in its applications in areas not fulfilled by other layered materials (LMs). However, its poor stability (fast degradation, i.e. ≪1h for monolayers) under ambient conditions restricts its practical application. We demonstrate here, by an experimental-theoretical approach, that the incorporation of nitrogen molecules (N2) into the BP structure results in a relevant improvement of its stability in air, up to 8 days without optical degradation signs. Our strategy involves the generation of defects (phosphorus vacancies) by electron-beam irradiation, followed by their healing with N2 molecules. As an additional route, N2 plasma treatment is presented as an alternative for large area application. Our first principles calculations elucidate the mechanisms involved in the nitrogen incorporation as well as on the stabilization of the modified BP, which corroborates with our experimental observations. This stabilization approach can be applied in the processing of BP, allowing for its use in environmentally stable van der Waals heterostructures with other LMs as well as in optoelectronic and wearable devices.
dc.description.volume564
dc.identifier.doi10.1016/j.apsusc.2021.150450
dc.identifier.issn0169-4332
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34571
dc.relation.ispartofApplied Surface Science
dc.rightsAcesso Aberto
dc.subject.otherlanguageBlack phosphorus
dc.subject.otherlanguageDefects
dc.subject.otherlanguageE-beam irradiation
dc.subject.otherlanguageEnvironmental stability
dc.subject.otherlanguageNitrogen-healing
dc.titleLong-term environmental stability of nitrogen-healed black phosphorus
dc.typeArtigo
local.scopus.citations9
local.scopus.eid2-s2.0-85111011512
local.scopus.subjectAmbient conditions
local.scopus.subjectE-beam irradiation
local.scopus.subjectEnvironmental stability
local.scopus.subjectITS applications
local.scopus.subjectLayered material
local.scopus.subjectNitrogen molecule
local.scopus.subjectNitrogen-healing
local.scopus.subjectOptoelectronics property
local.scopus.subjectPoor stability
local.scopus.subjectTheoretical approach
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85111011512&origin=inward
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