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Zhao J, Feng M, Dougherty DB, Sun H, Petek H. Molecular electronic level alignment at weakly coupled organic film/metal interfaces. ACS NANO 2014; 8:10988-10997. [PMID: 25303040 DOI: 10.1021/nn5049969] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Electronic level alignment at interfaces of molecular materials with inorganic semiconductors and metals controls many interfacial phenomena. How the intrinsic properties of the interacting systems define the electronic structure of their interface remains one of the most important problems in molecular electronics and nanotechnology that can be solved through a combination of surface science experimental techniques and theoretical modeling. In this article, we address this fundamental problem through experimental and computational studies of molecular electronic level alignment of thin films of C(6)F(6) on noble metal surfaces. The unoccupied electronic structure of C(6)F(6) is characterized with single molecule resolution using low-temperature scanning tunneling microscopy-based constant-current distance-voltage spectroscopy. The experiments are performed on several noble metal surfaces with different work functions and distinct surface-normal projected band structures. In parallel, the electronic structures of the quantum wells (QWs) formed by the lowest unoccupied molecular orbital state of the C(6)F(6) monolayer and multilayer films and their alignment with respect to the vacuum level of the metallic substrates are calculated by solving the Schrödinger equation for a semiempirical one-dimensional (1D) potential of the combined system using input from density functional theory. Our analysis shows that the level alignment for C(6)F(6) molecules bound through weak van der Waals interactions to noble metal surfaces is primarily defined by the image potential of metal, the electron affinity of the molecule, and the molecule surface distance. We expect the same factors to determine the interfacial electronic structure for a broad range of molecule/metal interfaces.
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Affiliation(s)
- Jin Zhao
- Department of Physics and ICQD/Hefei National Laboratory for Physical Sciences at Microscale, and §Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
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2
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Gaffney KJ, Liu SH, Miller AD, Szymanski P, Harris CB. The Adsorbate Electron Affinity Dependence of Femtosecond Electron Dynamics at Dielectric/Metal Interfaces. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200000103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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3
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Petek H. Photoexcitation of adsorbates on metal surfaces: one-step or three-step. J Chem Phys 2013; 137:091704. [PMID: 22957546 DOI: 10.1063/1.4746801] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In this essay we discuss the light-matter interactions at molecule-covered metal surfaces that initiate surface photochemistry. The hot-electron mechanism for surface photochemistry, whereby the absorption of light by a metal surface creates an electron-hole pair, and the hot electron scatters through an unoccupied resonance of adsorbate to initiate nuclear dynamics leading to photochemistry, has become widely accepted. Yet, ultrafast spectroscopic measurements of molecule-surface electronic structure and photoexcitation dynamics provide scant support for the hot electron mechanism. Instead, in most cases the adsorbate resonances are excited through photoinduced substrate-to-adsorbate charge transfer. Based on recent studies of the role of coherence in adsorbate photoexcitation, as measured by the optical phase and momentum resolved two-photon photoemission measurements, we examine critically the hot electron mechanism, and propose an alternative description based on direct charge transfer of electrons from the substrate to adsorbate. The advantage of this more quantum mechanically rigorous description is that it informs how material properties of the substrate and adsorbate, as well as their interaction, influence the frequency dependent probability of photoexcitation and ultimately how light can be used to probe and control surface femtochemistry.
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Affiliation(s)
- Hrvoje Petek
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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4
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Markus TZ, Daube SS, Naaman R. Cooperative effect in the electronic properties of human telomere sequence. J Phys Chem B 2011; 114:13897-903. [PMID: 20942452 DOI: 10.1021/jp1064038] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The contribution of sequence elements of human telomere DNA to the interaction of DNA with electrons has been analyzed. By applying wavelength dependent low-energy photoelectron transmission and two-photon photoemission spectroscopy, we investigated the density of states of DNA oligomers with partial sequence elements of the human telomere assembled as monolayers on gold. The findings demonstrate the role of the resonance states in the DNA in accepting electrons and the effect of the sequence on these states. When guanine (G) bases are clustered together, the resonance negative ion state is stabilized, as compared to oligomers containing the same number of G bases but distributed within the sequence. The electron-capturing probability of the human telomere-like oligomer, a sequence with an additional single adenine (A) base adjacent to the G cluster, is dramatically enhanced compared to the other oligomers studied, most likely due to the enhancement of the density of states near the highest occupied molecular orbital.
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Affiliation(s)
- Tal Z Markus
- Department of Chemical Physics, Weizmann Institute, Rehovot 76100, Israel
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5
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Markus TZ, Daube SS, Naaman R, Fleming AM, Muller JG, Burrows CJ. Electronic structure of DNA--unique properties of 8-oxoguanosine. J Am Chem Soc 2009; 131:89-95. [PMID: 19128174 DOI: 10.1021/ja804177j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
8-Oxo-7,8-dihydroguanosine (8-oxoG) is among the most common forms of oxidative DNA damage found in human cells. The question of damage recognition by the repair machinery is a long standing one, and it is intriguing to suggest that the mechanism of efficiently locating damage within the entire genome might be related to modulations in the electronic properties of lesions compared to regular bases. Using laser-based methods combined with organizing various oligomers self-assembled monolayers on gold substrates, we show that indeed 8-oxoG has special electronic properties. By using oligomers containing 8-oxoG and guanine bases which were inserted in an all thymine sequences, we were able to determine the energy of the HOMO and LUMO states and the relative density of electronic states below the vacuum level. Specifically, it was found that when 8-oxoG is placed in the oligomer, the HOMO state is at higher energy than in the other oligomers studied. In contrast, the weakly mutagenic 8-oxo-7,8-dihydroadenosine (8-oxoA) has little or no effect on the electronic properties of DNA.
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Affiliation(s)
- Tal Z Markus
- Department of Chemical Physics, Chemical Research Support, Weizmann Institute, Rehovot 76100, Israel
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6
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Ruffieux P, Aït-Mansour K, Bendounan A, Fasel R, Patthey L, Gröning P, Gröning O. Mapping the electronic surface potential of nanostructured surfaces. PHYSICAL REVIEW LETTERS 2009; 102:086807. [PMID: 19257772 DOI: 10.1103/physrevlett.102.086807] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2008] [Indexed: 05/27/2023]
Abstract
We present a method for the quantitative determination of the surface potential landscape of nanostructured surfaces based on the local analysis of the lowest field emission resonances by scanning tunneling spectroscopy. The method has a lateral resolution of approximately 1 nm and is applied to elucidate the site-specific adsorption properties of the strain relief pattern formed by two monolayers of Ag on Pt(111). For the example of C60 fullerenes, we show that the surface potential difference of up to 0.35 eV is responsible for the site-selective immobilization on the strain relief pattern.
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Affiliation(s)
- P Ruffieux
- Empa, Swiss Federal Laboratories for Materials Testing and Research, Feuerwerkerstrasse 39, 3602 Thun, Switzerland.
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7
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Meyer M, Stähler J, Kusmierek DO, Wolf M, Bovensiepen U. Determination of the electron’s solvation site on D2O/Cu(111) using Xe overlayers and femtosecond photoelectron spectroscopy. Phys Chem Chem Phys 2008; 10:4932-8. [DOI: 10.1039/b807314g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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8
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Watanabe K, Kim KH, Menzel D, Freund HJ. Hyperthermal chaotic photodesorption of xenon from alumina-supported silver nanoparticles: plasmonic coupling and plasmon-induced desorption. PHYSICAL REVIEW LETTERS 2007; 99:225501. [PMID: 18233294 DOI: 10.1103/physrevlett.99.225501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Indexed: 05/25/2023]
Abstract
Excitation of Xe monolayers on alumina-supported silver nanoparticles (AgNPs) by laser light in the (1,0) Mie plasmon resonance can lead to desorption of Xe atoms with hyperthermal energy and chaotic time structure. The chaotic behavior is most likely due to plasmonic coupling between AgNPs. We argue that the desorption is induced by direct energy transfer to the adsorbate from the Pauli repulsion of the collectively oscillating electrons of the plasmon at the surface. A simple model calculation shows that this is possible. A connection between both effects appears likely.
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Affiliation(s)
- Kazuo Watanabe
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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9
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Fradkin Z, Oron D, Naaman R. The effect of self-assembled monolayers on polarization-dependent two-photon photoemission and on the angular distribution of the photoelectrons. J Chem Phys 2007; 127:121102. [PMID: 17902886 DOI: 10.1063/1.2789413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The effect of a self-assembled organized organic monolayer on the two-photon photoemission from semiconductor substrates was investigated. It has been found that the monolayer affects the relative yield of photoelectrons emitted by p-polarized versus s-polarized light. In addition, the monolayer affects the angular distribution of the ejected electrons. The effect on the photoelectron yield is attributed to the monolayer "smoothing" the electronic potential on the surface by eliminating surface states and dangling bonds. The effect on the angular distribution is attributed to a post-ejection interaction between the photoelectrons and the adsorbed molecules.
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Affiliation(s)
- Z Fradkin
- Department of Chemical Physics, Weizmann Institute, Rehovot 76100, Israel
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10
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Stähler J, Mehlhorn M, Bovensiepen U, Meyer M, Kusmierek DO, Morgenstern K, Wolf M. Impact of ice structure on ultrafast electron dynamics in D2O clusters on Cu(111). PHYSICAL REVIEW LETTERS 2007; 98:206105. [PMID: 17677714 DOI: 10.1103/physrevlett.98.206105] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Indexed: 05/16/2023]
Abstract
The structure of D2O clusters on a Cu(111) surface and the femtosecond dynamics of photoexcited excess electrons are investigated by low-temperature scanning tunneling microscopy and two-photon photoemission spectroscopy. Two types of amorphous ice clusters, porous and compact, which exhibit characteristic differences in electron dynamics, are identified. By titration with Xe we show that in both structures solvated electrons preferentially bind on the cluster surface.
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Affiliation(s)
- J Stähler
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin-Dahlem, Germany
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11
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Naaman R, Sanche L. Low-Energy Electron Transmission through Thin-Film Molecular and Biomolecular Solids. Chem Rev 2007; 107:1553-79. [PMID: 17439288 DOI: 10.1021/cr040200j] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R Naaman
- Department of Chemical Physics, Weizmann Institute, Rehovot, Israel 76100
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12
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Zharikov AA, Fischer SF. Theory of electron localization at dielectric-metal interfaces: A continuum model. J Chem Phys 2007; 126:134707. [PMID: 17430056 DOI: 10.1063/1.2717176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Localization of electrons at dielectric-metal interfaces is studied in the framework of a continuum model. The layer of thickness L, with a negative electron affinity, is characterized by the static dielectric constant epsilons and by the optical dielectric constant epsiloninfinity. It is found that the electron localization along the plane of the interface occurs if the layer thickness exceeds a critical value Lc. In the case of a high polar layer, the electron energy of the localized ground state shows a nonmonotonic dependence on the layer thickness. A strong correlation between low-lying excitations and the spread of the localized state has been established. The magnitude of the correlation parameter is close to the analogous correlation for the solvated electron in the bulk. The localization dynamics is discussed in terms of relaxation along a polarization coordinate, which is directly connected to the polarization energy of the layer.
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Affiliation(s)
- A A Zharikov
- Physik Department T-38, Technische Universität München, D-85748 Garching, Germany.
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13
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Lindstrom CD, Muntwiler M, Zhu XY. Electron Dynamics at Polyacene/Au(111) Interfaces. J Phys Chem B 2007; 111:6913-20. [PMID: 17567099 DOI: 10.1021/jp0662505] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two-photon photoemission (2PPE) spectroscopy is used to examine the excited electronic structure and dynamics at polyacene/Au(111) interfaces. Image resonances are observed in all cases (benzene, naphthalene, anthrathene, tetracene, and pentacene), as evidenced by the free-electron like dispersions in the surface plane and the dependences of these resonances on the adsorption of nonane overlayers. The binding energies and lifetimes of these resonances are similar for the five interfaces. Adsorption of nonane on top of these films pushes the electron density in the image resonance away from the metal surface, resulting in a decrease in the binding energy (-0.3 eV) and an increase in the lifetime (from <20 to approximately 110 fs). The insensitivity of the image resonances to the size of polyacene molecules and the absence of photoinduced electron transfer from the metal substrate to molecular states both suggest that the unoccupied molecular orbitals are not strongly coupled to the delocalized metal states or image potential resonances.
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Affiliation(s)
- C D Lindstrom
- University of Minnesota, Department of Chemistry, Minneapolis, Minnesota 55455, USA
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14
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Lindstrom CD, Zhu XY. Photoinduced Electron Transfer at Molecule−Metal Interfaces. Chem Rev 2006; 106:4281-300. [PMID: 17031987 DOI: 10.1021/cr0501689] [Citation(s) in RCA: 138] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- C D Lindstrom
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA
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15
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Chulkov EV, Borisov AG, Gauyacq JP, Sanchez-Portal D, Silkin VM, Zhukov VP, Echenique PM. Electronic Excitations in Metals and at Metal Surfaces. Chem Rev 2006; 106:4160-206. [PMID: 17031983 DOI: 10.1021/cr050166o] [Citation(s) in RCA: 208] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- E V Chulkov
- Departamento de Física de Materiales and Centro Mixto CSIC-UPV/EHU, Facultad de Ciencias Químicas, Universidad del País Vasco UPV/EHU, Apdo. 1072, 20080 San Sebastian/Donostia, Basque Country, Spain.
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16
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Güdde J, Berthold W, Höfer U. Dynamics of Electronic Transfer Processes at Metal/Insulator Interfaces. Chem Rev 2006; 106:4261-80. [PMID: 17031986 DOI: 10.1021/cr050171s] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J Güdde
- Fachbereich Physik und Zentrum für Materialwissenschaften, Philipps-Universität, D-35032 Marburg, Germany
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17
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Lindstrom C, Dutton G, Quinn DP, Zhu X. Electron transfer/transport at metal-molecule interfaces probed by femtosecond time-resolved two-photon photoemission: Heptane and fullerene on Au(111). Isr J Chem 2005. [DOI: 10.1560/w0mp-n10j-9kjx-06uk] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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19
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Anderson NA, Lian T. Ultrafast electron injection from metal polypyridyl complexes to metal-oxide nanocrystalline thin films. Coord Chem Rev 2004. [DOI: 10.1016/j.ccr.2004.03.029] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bezel I, Gaffney KJ, Garrett-Roe S, Liu SH, Miller AD, Szymanski P, Harris CB. Measurement and dynamics of the spatial distribution of an electron localized at a metal–dielectric interface. J Chem Phys 2004; 120:845-56. [PMID: 15267921 DOI: 10.1063/1.1622386] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The ability of time- and angle-resolved two-photon photoemission to estimate the size distribution of electron localization in the plane of a metal-adsorbate interface is discussed. It is shown that the width of angular distribution of the photoelectric current is inversely proportional to the electron localization size within the most common approximations in the description of image potential states. The localization of the n=1 image potential state for two monolayers of butyronitrile on Ag(111) is used as an example. For the delocalized n=1 state, the shape of the signal amplitude as a function of momentum parallel to the surface changes rapidly with time, indicating efficient intraband relaxation on a 100 fs time scale. For the localized state, little change was observed. The latter is related to the constant size distribution of electron localization, which is estimated to be a Gaussian with a 15+/-4 A full width at half maximum in the plane of the interface. A simple model was used to study the effect of a weak localization potential on the overall width of the angular distribution of the photoemitted electrons, which exhibited little sensitivity to the details of the potential. This substantiates the validity of the localization size estimate.
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Affiliation(s)
- Ilya Bezel
- Department of Chemistry, University of California and Chemical Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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21
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Liu SH, Miller AD, Gaffney KJ, Szymanski P, Garrett-Roe S, Bezel I, Harris CB. Direct Observation of Two-Dimensional Electron Solvation at Alcohol/Ag(111) Interfaces. J Phys Chem B 2002. [DOI: 10.1021/jp025772r] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. H. Liu
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - A. D. Miller
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - K. J. Gaffney
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - P. Szymanski
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - S. Garrett-Roe
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - I. Bezel
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - C. B. Harris
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E.O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
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22
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23
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Jørgensen S, Ratner MA, Mikkelsen KV. Electronic states of Cu(111)/C6H6. A dielectric continuum approach and a heterogeneous solvation model. Chem Phys 2002. [DOI: 10.1016/s0301-0104(02)00338-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Berthold W, Höfer U, Feulner P, Chulkov EV, Silkin VM, Echenique PM. Momentum-resolved lifetimes of image-potential States on cu(100). PHYSICAL REVIEW LETTERS 2002; 88:056805. [PMID: 11863766 DOI: 10.1103/physrevlett.88.056805] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2001] [Indexed: 05/23/2023]
Abstract
The dependence of the inelastic lifetime of electrons in the image-potential states of Cu(100) on their momentum parallel to the surface has been studied experimentally by means of time- and angle-resolved two-photon photoemission and theoretically by evaluating the electron self-energy within the GW approximation. The pronounced decrease of the n = 1 lifetime from 40 fs at normal emission (k(parallel) = 0) to 20 fs for k(parallel) = 0.33 A(-1) cannot be accounted for by interband decay processes to bulk states. We show that intraband transitions within the image-state band give a contribution to this decrease comparable in magnitude with the interband channel.
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Affiliation(s)
- W Berthold
- Fachbereich Physik und Zentrum für Materialwissenschaften, Philipps-Universität, D-35032 Marburg, Germany
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25
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Lo Nostro P, Lopes JR, Ninham BW, Baglioni P. Effect of Cations and Anions on the Formation of Polypseudorotaxanes. J Phys Chem B 2002. [DOI: 10.1021/jp012915l] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pierandrea Lo Nostro
- Department of Chemistry and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino 50019 Florence, Italy, Instituto de Quìmica, Universidade Estadual de Campinas, Caixa Postal 6154, 13083−970 Campinas (Brasil), and Department of Applied Mathematics, Research School of Physical Sciences, Australian National University, Canberra, A. C. T., Australia 0200
| | - Josias R. Lopes
- Department of Chemistry and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino 50019 Florence, Italy, Instituto de Quìmica, Universidade Estadual de Campinas, Caixa Postal 6154, 13083−970 Campinas (Brasil), and Department of Applied Mathematics, Research School of Physical Sciences, Australian National University, Canberra, A. C. T., Australia 0200
| | - Barry W. Ninham
- Department of Chemistry and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino 50019 Florence, Italy, Instituto de Quìmica, Universidade Estadual de Campinas, Caixa Postal 6154, 13083−970 Campinas (Brasil), and Department of Applied Mathematics, Research School of Physical Sciences, Australian National University, Canberra, A. C. T., Australia 0200
| | - Piero Baglioni
- Department of Chemistry and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino 50019 Florence, Italy, Instituto de Quìmica, Universidade Estadual de Campinas, Caixa Postal 6154, 13083−970 Campinas (Brasil), and Department of Applied Mathematics, Research School of Physical Sciences, Australian National University, Canberra, A. C. T., Australia 0200
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26
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Jørgensen S, Ratner MA, Mikkelsen KV. Time-resolved two-photon photoemission spectroscopy of image potential states: A phenomenological approach. J Chem Phys 2001. [DOI: 10.1063/1.1388625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Gaffney KJ, Miller AD, Liu SH, Harris CB. Femtosecond Dynamics of Electrons Photoinjected into Organic Semiconductors at Aromatic-Metal Interfaces. J Phys Chem B 2001. [DOI: 10.1021/jp010931c] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. J. Gaffney
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - A. D. Miller
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - S. H. Liu
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - C. B. Harris
- Department of Chemistry, University of California, Berkeley, California 94720, and Chemical Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
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28
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Ray SG, Naaman R. The role of the composition of organic layer in determining its electronic structure. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00437-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Štrajbl M, Florián J, Warshel A. Ab Initio Evaluation of the Free Energy Surfaces for the General Base/Acid Catalyzed Thiolysis of Formamide and the Hydrolysis of Methyl Thiolformate: A Reference Solution Reaction for Studies of Cysteine Proteases. J Phys Chem B 2001. [DOI: 10.1021/jp010279l] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marek Štrajbl
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-1062
| | - Jan Florián
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-1062
| | - Arieh Warshel
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-1062
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Jo/rgensen S, Ratner MA, Mikkelsen KV. Wavefunctions and eigenvalues of image potential states. J Chem Phys 2001. [DOI: 10.1063/1.1342861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jo/rgensen S, Ratner MA, Mikkelsen KV. Potential energy surfaces of image potential states. J Chem Phys 2001. [DOI: 10.1063/1.1342860] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shkrob IA, Sauer MC, Trifunac AD. Radiation chemistry of organic liquids: Saturated hydrocarbons. RADIATION CHEMISTRY - PRESENT STATUS AND FUTURE TRENDS 2001. [DOI: 10.1016/s0167-6881(01)80011-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Hotzel A, Wolf M, Gauyacq JP. Phonon-Mediated Intraband Relaxation of Image-State Electrons in Adsorbate Overlayers: N2/Xe/Cu(111). J Phys Chem B 2000. [DOI: 10.1021/jp000989b] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Hotzel
- Fritz-Haber-Institut der MPG, Faradayweg 4-6, D-14195 Berlin, Germany
| | - M. Wolf
- Fritz-Haber-Institut der MPG, Faradayweg 4-6, D-14195 Berlin, Germany
| | - J. P. Gauyacq
- Laboratoire des Collisions Atomiques et Moleculaires, Unité mixte de récherche CNRS-Université Paris-Sud UMR 8625, Bâtiment 351, Université Paris-Sud, 91405 Orsay Cedex, France
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Berthold W, Höfer U, Feulner P, Menzel D. Influence of Xe adlayer morphology and electronic structure on image-potential state lifetimes of Ru(0001). Chem Phys 2000. [DOI: 10.1016/s0301-0104(99)00329-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Clark BK, Gregory BW, Avila A, Cotton TM, Standard JM. Surface-Enhanced Electronic Raman Scattering from Self-Assembled Alkanethiol Monolayers on Gold Surfaces. J Phys Chem B 1999. [DOI: 10.1021/jp9923771] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- B. K. Clark
- Department of Physics, Illinois State University, Normal, Illinois 61790-4560, Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Brian W. Gregory
- Department of Physics, Illinois State University, Normal, Illinois 61790-4560, Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Albert Avila
- Department of Physics, Illinois State University, Normal, Illinois 61790-4560, Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Therese M. Cotton
- Department of Physics, Illinois State University, Normal, Illinois 61790-4560, Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - J. M. Standard
- Department of Physics, Illinois State University, Normal, Illinois 61790-4560, Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
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