Surface Electronic Structure of Hybrid Organo Lead Bromide Perovskite Single Crystals

Handle URI:
http://hdl.handle.net/10754/622475
Title:
Surface Electronic Structure of Hybrid Organo Lead Bromide Perovskite Single Crystals
Authors:
Komesu, Takashi; Huang, Xin; Paudel, Tula R.; Losovyj, Yaroslav B.; Zhang, Xin; Schwier, Eike F.; Kojima, Yohei; Zheng, Mingtian; Iwasawa, Hideaki; Shimada, Kenya; Saidaminov, Makhsud I. ( 0000-0002-3850-666X ) ; Shi, Dong ( 0000-0003-4009-2686 ) ; Abdelhady, Ahmed L.; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Dong, Shuai; Tsymbal, Evgeny Y.; Dowben, Peter A.
Abstract:
The electronic structure and band dispersion of methylammonium lead bromide, CH3NH3PbBr3, has been investigated through a combination of angle-resolved photoemission spectroscopy (ARPES) and inverse photoemission spectroscopy (IPES), as well as theoretical modeling based on density functional theory. The experimental band structures are consistent with the density functional calculations. The results demonstrate the presence of a dispersive valence band in MAPbBr3 that peaks at the M point of the surface Brillouin zone. The results also indicate that the surface termination of the CH3NH3PbBr3 is the methylammonium bromide (CH3NH3Br) layer. We find our results support models that predict a heavier hole effective mass in the region of -0.23 to -0.26 me, along the Γ (surface Brillouin center) to M point of the surface Brillouin zone. The surface appears to be n-type as a result of an excess of lead in the surface region. © 2016 American Chemical Society.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Komesu T, Huang X, Paudel TR, Losovyj YB, Zhang X, et al. (2016) Surface Electronic Structure of Hybrid Organo Lead Bromide Perovskite Single Crystals. The Journal of Physical Chemistry C 120: 21710–21715. Available: http://dx.doi.org/10.1021/acs.jpcc.6b08329.
Publisher:
American Chemical Society (ACS)
Journal:
The Journal of Physical Chemistry C
Issue Date:
24-Aug-2016
DOI:
10.1021/acs.jpcc.6b08329
Type:
Article
ISSN:
1932-7447; 1932-7455
Sponsors:
This work was supported by the National Science Foundation through the Nebraska MRSEC (Grant DMR-1420645) and the Nebraska Center for Energy Science Research as well as KAUST. Facility use at HiSOR based on HiSOR proposal number 15-A-18 is acknowledged. E.F.S acknowledges financial support from the JSPS postdoctoral fellowship for overseas researchers as well as the Alexander von Humboldt Foundation (Grant P13783). X.H. was supported by the China Scholarship Council.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b08329
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKomesu, Takashien
dc.contributor.authorHuang, Xinen
dc.contributor.authorPaudel, Tula R.en
dc.contributor.authorLosovyj, Yaroslav B.en
dc.contributor.authorZhang, Xinen
dc.contributor.authorSchwier, Eike F.en
dc.contributor.authorKojima, Yoheien
dc.contributor.authorZheng, Mingtianen
dc.contributor.authorIwasawa, Hideakien
dc.contributor.authorShimada, Kenyaen
dc.contributor.authorSaidaminov, Makhsud I.en
dc.contributor.authorShi, Dongen
dc.contributor.authorAbdelhady, Ahmed L.en
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorDong, Shuaien
dc.contributor.authorTsymbal, Evgeny Y.en
dc.contributor.authorDowben, Peter A.en
dc.date.accessioned2017-01-02T09:28:33Z-
dc.date.available2017-01-02T09:28:33Z-
dc.date.issued2016-08-24en
dc.identifier.citationKomesu T, Huang X, Paudel TR, Losovyj YB, Zhang X, et al. (2016) Surface Electronic Structure of Hybrid Organo Lead Bromide Perovskite Single Crystals. The Journal of Physical Chemistry C 120: 21710–21715. Available: http://dx.doi.org/10.1021/acs.jpcc.6b08329.en
dc.identifier.issn1932-7447en
dc.identifier.issn1932-7455en
dc.identifier.doi10.1021/acs.jpcc.6b08329en
dc.identifier.urihttp://hdl.handle.net/10754/622475-
dc.description.abstractThe electronic structure and band dispersion of methylammonium lead bromide, CH3NH3PbBr3, has been investigated through a combination of angle-resolved photoemission spectroscopy (ARPES) and inverse photoemission spectroscopy (IPES), as well as theoretical modeling based on density functional theory. The experimental band structures are consistent with the density functional calculations. The results demonstrate the presence of a dispersive valence band in MAPbBr3 that peaks at the M point of the surface Brillouin zone. The results also indicate that the surface termination of the CH3NH3PbBr3 is the methylammonium bromide (CH3NH3Br) layer. We find our results support models that predict a heavier hole effective mass in the region of -0.23 to -0.26 me, along the Γ (surface Brillouin center) to M point of the surface Brillouin zone. The surface appears to be n-type as a result of an excess of lead in the surface region. © 2016 American Chemical Society.en
dc.description.sponsorshipThis work was supported by the National Science Foundation through the Nebraska MRSEC (Grant DMR-1420645) and the Nebraska Center for Energy Science Research as well as KAUST. Facility use at HiSOR based on HiSOR proposal number 15-A-18 is acknowledged. E.F.S acknowledges financial support from the JSPS postdoctoral fellowship for overseas researchers as well as the Alexander von Humboldt Foundation (Grant P13783). X.H. was supported by the China Scholarship Council.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b08329en
dc.titleSurface Electronic Structure of Hybrid Organo Lead Bromide Perovskite Single Crystalsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalThe Journal of Physical Chemistry Cen
dc.contributor.institutionDepartment of Physics and Astronomy, Jorgensen Hall, University of Nebraska-Lincoln, 855 North 16th Street, Lincoln, NE, United Statesen
dc.contributor.institutionDepartment of Physics, Southeast University, Nanjing, Chinaen
dc.contributor.institutionDepartment of Chemistry, Indiana University, A421C 800 E. Kirkwood Ave., Bloomington, IN, United Statesen
dc.contributor.institutionHiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Japanen
dc.contributor.institutionGraduate School of Science, Hiroshima University, Higashi-Hiroshima, Japanen
kaust.authorSaidaminov, Makhsud I.en
kaust.authorShi, Dongen
kaust.authorAbdelhady, Ahmed L.en
kaust.authorBakr, Osman M.en
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