Copper phthalocyanine on InSb(111)A—interface bonding, growth mode and energy band alignment

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dc.contributor.author Jones, T. S.
dc.contributor.author Zahn, D. R.
dc.contributor.author McGovern, I. T.
dc.contributor.author Cabailh, G.
dc.contributor.author Evans, Stephen
dc.contributor.author Evans, Andrew
dc.contributor.author Steiner, H. J.
dc.contributor.author Park, S.
dc.contributor.author Middleton, R.
dc.contributor.author Kanpen, T. U.
dc.contributor.author Evans, David Andrew
dc.date.accessioned 2007-10-02T13:41:59Z
dc.date.available 2007-10-02T13:41:59Z
dc.date.issued 2003-09-12
dc.identifier.citation Jones , T S , Zahn , D R , McGovern , I T , Cabailh , G , Evans , S , Evans , A , Steiner , H J , Park , S , Middleton , R , Kanpen , T U & Evans , D A 2003 , ' Copper phthalocyanine on InSb(111)A—interface bonding, growth mode and energy band alignment ' Journal of Physics: Condensed Matter , vol 15 , no. 38 . , 10.1088/0953-8984/15/38/011 en
dc.identifier.issn 1361-648X
dc.identifier.other PURE: 72491
dc.identifier.other dspace: 2160/335
dc.identifier.uri http://hdl.handle.net/2160/335
dc.description Copper phthalocyanine on InSb(111)A—interface bonding, growth mode and energy band alignment, D.A. Evans, H.J. Steiner, S. Evans, R. Middleton, T.S. Jones, S. Park, T.U. Kampen, D.R.T. Zahn, G. Cabailh and I.T. McGovern, J. Phys.: Condens. Matter, 15, S2729–S2740, (2003) en
dc.description.abstract The growth of the organic semiconductor CuPc on the InSb(111)A surface at 300 K has been studied using photoelectron spectroscopy. Core level emission data obtained using low energy synchrotron radiation reveal that the interface is abrupt with very weak bonding between the InSb surface atoms and the adsorbed molecules. The coverage dependence of the substrate and overlayer core level peak intensities follows the prediction of a uniform growth mode at high growth rates, but the organic film follows a Stranski–Krastanov growth mode at lower growth rates. C1s andN1s photoelectron emission data obtained with Mg Kα radiation confirm that the CuPc molecules are intact within the layer, and shake-up satellites associated with benzene and pyrrole C and N peaks provide an insight into the energy and spatial distribution of the highest occupied and lowest unoccupied molecular orbitals. Photoelectron emission from the occupied bonding states of the CuPc and the valence band states of InSb provides the band offset for the filled states and the overall energy band profile for this organic–inorganic heterojunction. The presence of an interface dipole at the interface disproves a simple band alignment based on the vacuum level; the energy bands have a nested arrangement where both band edges in the InSb lie within the HOMO–LUMO gap of the CuPc. en
dc.language.iso eng
dc.relation.ispartof Journal of Physics: Condensed Matter en
dc.title Copper phthalocyanine on InSb(111)A—interface bonding, growth mode and energy band alignment en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1088/0953-8984/15/38/011
dc.contributor.institution Mathematics and Physics en
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Department of Computer Science en
dc.description.status Peer reviewed en


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