Two-photon photoemission from ex-situ prepared butanethiol SAMs on Au (111)

被引：3

作者：

Heinemann, N. ^{[1
]}

Leissner, T. ^{[1
]}

Grunau, J. ^{[1
]}

Rohwer, T. ^{[1
]}

Andreyev, O. ^{[1
]}

Bauer, M. ^{[1
]}

机构：

[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

来源：

CHEMICAL PHYSICS | 2011年 / 382卷 / 1-3期

关键词：

Two-photon photoelectron spectroscopy 2PPE; LEED; SAM; Self-assembled monolayers; Molecular electronics; Alkanethiol; Butanethiol; Ex-situ preparation; SELF-ASSEMBLED MONOLAYERS; TERT-BUTYL-AZOBENZENE; ELECTRONIC-STRUCTURE; STRIPED PHASES; CHAIN-LENGTH; GOLD; AU(111); SURFACE; INTERFACE; EVOLUTION;

D O I：

10.1016/j.chemphys.2011.03.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Self-assembled monolayers (SAMs) of butanethiol on a Au (111) single crystalline surface in the p x root 3 lying-down phase prepared by deposition from solution were studied with two-photon photoemission (2PPE) spectroscopy. The spectra reveal clear signatures of two unoccupied resonance states at energies E - E-F = 3.7 eV and 3.9 eV. The low-energy state is assigned to the characteristic sigma*-resonance associated with the Au-S bond of the thiolate. The energy of the other resonance state agrees well with an interface state reported before for different alkanethiol SAMs on Au (111) in a standing-up phase. Furthermore the 2PPE data provide indications that the high quality of the ex-situ prepared SAMs support the formation of image potential states. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：1 / 4

页数：4

共 28 条

[1] Chain length dependence of the striped phases of alkanethiol monolayers self-assembled on Au(111): An atomic beam diffraction study [J].

Camillone, N ;

Leung, TYB ;

Schwartz, P ;

Eisenberger, P ;

Scoles, G .

LANGMUIR, 1996, 12 (11) :2737-2746

[2] Surface molecular structure of self-assembled alkanethiols evidenced by UPS and photoemission with synchrotron radiation [J].

Duwez, AS ;

DiPaolo, S ;

Ghijsen, J ;

Riga, J ;

Deleuze, M ;

Delhalle, J .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (06) :884-890

[3] Photoswitching of azobenzene derivatives formed on planar and colloidal gold surfaces [J].

Evans, SD ;

Johnson, SR ;

Ringsdorf, H ;

Williams, LM ;

Wolf, H .

LANGMUIR, 1998, 14 (22) :6436-6440

[4]

FAUSTER T, PHOTONIC PROBES SURF

[5] IMAGE POTENTIAL STATES SEEN VIA 2-PHOTON PHOTOEMISSION AND 2ND HARMONIC-GENERATION [J].

GIESEN, K ;

HAGE, F ;

RIESS, HJ ;

STEINMANN, W ;

HAIGHT, R ;

BEIGANG, R ;

DREYFUS, R ;

AVOURIS, P ;

HIMPSEL, FJ .

PHYSICA SCRIPTA, 1987, 35 (04) :578-581

[6] Reversible switching of tetra-tert-butyl-azobenzene on a Au(111) surface induced by light and thermal activation [J].

Hagen, Sebastian ;

Leyssner, Felix ;

Nandi, Dhananjay ;

Wolf, Martin ;

Tegeder, Petra .

CHEMICAL PHYSICS LETTERS, 2007, 444 (1-3) :85-90

[7] Excitation mechanism in the photoisomerization of a surface-bound azobenzene derivative: Role of the metallic substrate [J].

Hagen, Sebastian ;

Kate, Peter ;

Leyssner, Felix ;

Nandi, Dhananjay ;

Wolf, Martin ;

Tegeder, Petra .

JOURNAL OF CHEMICAL PHYSICS, 2008, 129 (16)

[8] Electron transmission through organized organic thin films studied by discrete initial electron kinetic energies [J].

Haran, A ;

Naaman, R ;

Ashkenasy, G ;

Shanzer, A ;

Quast, T ;

Winter, B ;

Hertel, IV .

EUROPEAN PHYSICAL JOURNAL B, 1999, 8 (03) :445-451

[9] Photoswitching Behavior of Azobenzene-Containing Alkanethiol Self-Assembled Monolayers on Au Surfaces [J].

Jung, Ulrich ;

Filinova, Olena ;

Kuhn, Sonja ;

Zargarani, Dordaneh ;

Bornholdt, Claudia ;

Herges, Rainer ;

Magnussen, Olaf .

LANGMUIR, 2010, 26 (17) :13913-13923

[10] Effect of alkyl chain length on the fluorescence of 9-alkylfluorenyl thiols as self-assembled monolayers on gold [J].

Kittredge, KW ;

Fox, MA ;

Whitesell, JK .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (43) :10594-10599

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