Adsorption of Cu phthalocyanine on Pt modified Ge(001): A scanning tunneling microscopy study

A. Saedi; Robin P. Berkelaar; Avijit Kumar; Bene Poelsema; Henricus J.W. Zandvliet

doi:10.1103/PhysRevB.82.165306

Adsorption of Cu phthalocyanine on Pt modified Ge(001): A scanning tunneling microscopy study

A. Saedi, Robin P. Berkelaar, Avijit Kumar, Bene Poelsema, Henricus J.W. Zandvliet

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Abstract

The adsorption configurations of copper phthalocyanine (CuPc) molecules on platinum-modified Ge(001) have been studied using scanning tunneling microscopy. After deposition at room temperature and cooling down to 77 K the CuPc molecules are still dynamic. However, after annealing at 550±50 K, the adsorption configurations of the CuPc molecules change and the CuPc molecules do not exhibit any dynamics at 77 K. This is indicative of a transition from a physisorbed to a chemisorbed state. We suggest that during annealing, the CuPc molecule binds with the substrate dimers via a cycloaddition reaction. Atomic models are proposed for the different adsorption configurations

Original language	Undefined
Pages (from-to)	165306
Journal	Physical review B: Condensed matter and materials physics
Volume	82
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.82.165306
Publication status	Published - 2010

Keywords

IR-74002

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10.1103/PhysRevB.82.165306

Cite this

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title = "Adsorption of Cu phthalocyanine on Pt modified Ge(001): A scanning tunneling microscopy study",

abstract = "The adsorption configurations of copper phthalocyanine (CuPc) molecules on platinum-modified Ge(001) have been studied using scanning tunneling microscopy. After deposition at room temperature and cooling down to 77 K the CuPc molecules are still dynamic. However, after annealing at 550±50 K, the adsorption configurations of the CuPc molecules change and the CuPc molecules do not exhibit any dynamics at 77 K. This is indicative of a transition from a physisorbed to a chemisorbed state. We suggest that during annealing, the CuPc molecule binds with the substrate dimers via a cycloaddition reaction. Atomic models are proposed for the different adsorption configurations",

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year = "2010",

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T1 - Adsorption of Cu phthalocyanine on Pt modified Ge(001): A scanning tunneling microscopy study

AU - Saedi, A.

AU - Berkelaar, Robin P.

AU - Kumar, Avijit

AU - Poelsema, Bene

AU - Zandvliet, Henricus J.W.

PY - 2010

Y1 - 2010

N2 - The adsorption configurations of copper phthalocyanine (CuPc) molecules on platinum-modified Ge(001) have been studied using scanning tunneling microscopy. After deposition at room temperature and cooling down to 77 K the CuPc molecules are still dynamic. However, after annealing at 550±50 K, the adsorption configurations of the CuPc molecules change and the CuPc molecules do not exhibit any dynamics at 77 K. This is indicative of a transition from a physisorbed to a chemisorbed state. We suggest that during annealing, the CuPc molecule binds with the substrate dimers via a cycloaddition reaction. Atomic models are proposed for the different adsorption configurations

AB - The adsorption configurations of copper phthalocyanine (CuPc) molecules on platinum-modified Ge(001) have been studied using scanning tunneling microscopy. After deposition at room temperature and cooling down to 77 K the CuPc molecules are still dynamic. However, after annealing at 550±50 K, the adsorption configurations of the CuPc molecules change and the CuPc molecules do not exhibit any dynamics at 77 K. This is indicative of a transition from a physisorbed to a chemisorbed state. We suggest that during annealing, the CuPc molecule binds with the substrate dimers via a cycloaddition reaction. Atomic models are proposed for the different adsorption configurations

KW - IR-74002

U2 - 10.1103/PhysRevB.82.165306

DO - 10.1103/PhysRevB.82.165306

M3 - Article

SN - 1098-0121

VL - 82

SP - 165306

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

IS - 16

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