Electronic properties of ultrathin O-terminated ZnO (0001¯) on Au (111)

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dc.creatorIsrael Fidelis de Lima
dc.creatorChristian Stiehler
dc.creatorSílvio Manuel Duarte Queirós
dc.creatorCarsten Enderlein
dc.creatorWendell Simões e Silva
dc.creatorEdmar Avellar Soares
dc.creatorShamil K. Shaikhutdinov
dc.creatorHans-Joachim Freund
dc.creatorFernando Loureiro Stavale Junior
dc.date.accessioned2023-08-28T13:12:47Z
dc.date.accessioned2025-09-09T00:19:45Z
dc.date.available2023-08-28T13:12:47Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipFAPERJ - Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
dc.identifier.doihttps://doi.org/10.1016/j.susc.2018.10.007
dc.identifier.issn1879-2758
dc.identifier.urihttps://hdl.handle.net/1843/58277
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofSurface Science
dc.rightsAcesso Restrito
dc.subjectCatalizadores
dc.subjectFilmes finos
dc.subjectPropriedades eletrônicas
dc.subjectZinco
dc.subject.otherX-ray and ultraviolet photoemission spectroscopy
dc.subject.otherZinc oxide
dc.subject.otherUltrathin film
dc.subject.otherCharge transfer
dc.subject.otherPolar oxides
dc.titleElectronic properties of ultrathin O-terminated ZnO (0001¯) on Au (111)
dc.typeArtigo de periódico
local.citation.epage263
local.citation.spage259
local.citation.volume679
local.description.resumoThe electronic structure of ultrathin ZnO films grown on Au (111) was investigated by scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and X-ray and ultraviolet photoemission spectroscopy (XPS and UPS). Our results show evidence of O-terminated films and formation of bulk-like ZnO (2 × 2) surface reconstruction for films with > 4 monolayers. The measurements indicate that the metal substrate plays a decisive role in the electronic structure of films since p-type doping is obtained as observed from the valence band energy shifts. Moreover, finite-size effects appear to significantly modify the Zn and O core-level energy positions. These electronic effects may account for the role of ZnO catalytic performance in ZnO/metal systems, as well as for their nanostructure optoelectronic properties.
local.identifier.orcidhttps://orcid.org/0000-0001-6915-1892
local.identifier.orcidhttps://orcid.org/0000-0002-6907-5014
local.identifier.orcidhttps://orcid.org/0000-0002-6174-9037
local.identifier.orcidhttps://orcid.org/0000-0003-3356-3312
local.identifier.orcidhttps://orcid.org/0000-0001-9612-9949
local.identifier.orcidhttps://orcid.org/0000-0001-6771-0048
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0039602818307088

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