Evolution of the SrTiO3/MoO3 interface electronic structure: An in situ photoelectron spectroscopy study

Handle URI:
http://hdl.handle.net/10754/553007
Title:
Evolution of the SrTiO3/MoO3 interface electronic structure: An in situ photoelectron spectroscopy study
Authors:
Du, Yuanmin; Peng, Haiyang; Mao, Hongying; Jin, Kexin; Wang, Hong; Li, Feng; Gao, Xingyu; Chen, Wei; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
Modifying the surface energetics, particularly the work function, of advanced materials is of critical importance for a wide range of surface- and interface-based devices. In this work, using in situ photoelectron spectroscopy, we investigated the evolution of electronic structure at the SrTiO3 surface during the growth of ultrathin MoO3 layers. Thanks to the large work function difference between SrTiO3 and MoO3, the energy band alignment on the SrTiO3 surface is significantly modified. The charge transfer and dipole formation at the SrTiO3/MoO3 interface leads to a large modulation of work function and an apparent doping in SrTiO3. The measured evolution of electronic structure and upward band bending suggest that the growth of ultrathin MoO3 layers is a powerful tool to modulate the surface energetics of SrTiO3, and this surface-engineering approach could be generalized to other functional oxides.
KAUST Department:
Materials Science and Engineering Program
Citation:
Evolution of the SrTiO3/MoO3 interface electronic structure: An in situ photoelectron spectroscopy study, 2015:150512135958003 ACS Applied Materials & Interfaces
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
12-May-2015
DOI:
10.1021/acsami.5b01698
Type:
Article
ISSN:
1944-8244; 1944-8252
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsami.5b01698
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorDu, Yuanminen
dc.contributor.authorPeng, Haiyangen
dc.contributor.authorMao, Hongyingen
dc.contributor.authorJin, Kexinen
dc.contributor.authorWang, Hongen
dc.contributor.authorLi, Fengen
dc.contributor.authorGao, Xingyuen
dc.contributor.authorChen, Weien
dc.contributor.authorWu, Taoen
dc.date.accessioned2015-05-17T20:24:06Zen
dc.date.available2015-05-17T20:24:06Zen
dc.date.issued2015-05-12en
dc.identifier.citationEvolution of the SrTiO3/MoO3 interface electronic structure: An in situ photoelectron spectroscopy study, 2015:150512135958003 ACS Applied Materials & Interfacesen
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.doi10.1021/acsami.5b01698en
dc.identifier.urihttp://hdl.handle.net/10754/553007en
dc.description.abstractModifying the surface energetics, particularly the work function, of advanced materials is of critical importance for a wide range of surface- and interface-based devices. In this work, using in situ photoelectron spectroscopy, we investigated the evolution of electronic structure at the SrTiO3 surface during the growth of ultrathin MoO3 layers. Thanks to the large work function difference between SrTiO3 and MoO3, the energy band alignment on the SrTiO3 surface is significantly modified. The charge transfer and dipole formation at the SrTiO3/MoO3 interface leads to a large modulation of work function and an apparent doping in SrTiO3. The measured evolution of electronic structure and upward band bending suggest that the growth of ultrathin MoO3 layers is a powerful tool to modulate the surface energetics of SrTiO3, and this surface-engineering approach could be generalized to other functional oxides.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.5b01698en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.5b01698.en
dc.titleEvolution of the SrTiO3/MoO3 interface electronic structure: An in situ photoelectron spectroscopy studyen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.eprint.versionPost-printen
dc.contributor.institutionAdvanced LSI Technology Laboratory, Corporate Resea rch and Development Center, Toshiba Corporation, Kawasaki 212%8582, Japanen
dc.contributor.institutionDepartment of Chemistry, National University of Sin gapore, 2 Science Drive 3, 117542 Singaporeen
dc.contributor.institutionDepartment of Physics, Hangzhou Normal University, Hangzhou 310036, P. R. Chinaen
dc.contributor.institutionDepartment of Applied Physics, Northwestern Polytec hnical University, Xi'an 710072, P. R. Chinaen
dc.contributor.institutionDepartment of Physics, National University of Singa pore, 2 Science Drive 3, 117542 Singaporeen
dc.contributor.institutionShanghai Institute of Applied Physics, Chinese Acad emy of Sciences, Shanghai 201800, P. R. Chinaen
kaust.authorDu, Yuanminen
kaust.authorWu, Taoen
kaust.authorWang, Hongen
kaust.authorLi, Fengen
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