Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules

Kai Yang; Wende Xiao; Liwei Liu; Xiangmin Fei; Hui Chen; Shixuan Du; Hong Jun Gao

doi:10.1007/s12274-013-0373-z

Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules

Kai Yang, Wende Xiao, Liwei Liu, Xiangmin Fei, Hui Chen, Shixuan Du, Hong Jun Gao^*

^*Corresponding author for this work

Chinese Academy of Sciences

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Low-dimensional H₂ aggregates have been successfully fabricated on Au(111) surfaces and investigated by means of low temperature scanning tunneling microscopy. We use manganese phthalocyanine (MnPc) molecules anchored on the Au(111) surface to efficiently collect and pin hydrogen molecules. A two-dimensional (2D) molecular hydrogen cluster is formed around the MnPc. The hydrogen cluster exhibits bias-dependent topography and spatial-dependent conductance spectra, which are rationalized by the exponentially decreasing threshold energy with distance from the central MnPc to activate the motion of the H₂ molecules. This exponential drop reveals an interfacial phase behavior in the 2D cluster. [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	79-84
Number of pages	6
Journal	Nano Research
Volume	7
Issue number	1
DOIs	https://doi.org/10.1007/s12274-013-0373-z
Publication status	Published - Jan 2014
Externally published	Yes

Keywords

Au(111)
hydrogen
interfacial phase
manganese phthalocyanine
scanning tunneling microscopy

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10.1007/s12274-013-0373-z

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title = "Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules",

abstract = "Low-dimensional H2 aggregates have been successfully fabricated on Au(111) surfaces and investigated by means of low temperature scanning tunneling microscopy. We use manganese phthalocyanine (MnPc) molecules anchored on the Au(111) surface to efficiently collect and pin hydrogen molecules. A two-dimensional (2D) molecular hydrogen cluster is formed around the MnPc. The hydrogen cluster exhibits bias-dependent topography and spatial-dependent conductance spectra, which are rationalized by the exponentially decreasing threshold energy with distance from the central MnPc to activate the motion of the H2 molecules. This exponential drop reveals an interfacial phase behavior in the 2D cluster. [Figure not available: see fulltext.]",

keywords = "Au(111), hydrogen, interfacial phase, manganese phthalocyanine, scanning tunneling microscopy",

author = "Kai Yang and Wende Xiao and Liwei Liu and Xiangmin Fei and Hui Chen and Shixuan Du and Gao, {Hong Jun}",

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TY - JOUR

T1 - Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules

AU - Yang, Kai

AU - Xiao, Wende

AU - Liu, Liwei

AU - Fei, Xiangmin

AU - Chen, Hui

AU - Du, Shixuan

AU - Gao, Hong Jun

PY - 2014/1

Y1 - 2014/1

N2 - Low-dimensional H2 aggregates have been successfully fabricated on Au(111) surfaces and investigated by means of low temperature scanning tunneling microscopy. We use manganese phthalocyanine (MnPc) molecules anchored on the Au(111) surface to efficiently collect and pin hydrogen molecules. A two-dimensional (2D) molecular hydrogen cluster is formed around the MnPc. The hydrogen cluster exhibits bias-dependent topography and spatial-dependent conductance spectra, which are rationalized by the exponentially decreasing threshold energy with distance from the central MnPc to activate the motion of the H2 molecules. This exponential drop reveals an interfacial phase behavior in the 2D cluster. [Figure not available: see fulltext.]

AB - Low-dimensional H2 aggregates have been successfully fabricated on Au(111) surfaces and investigated by means of low temperature scanning tunneling microscopy. We use manganese phthalocyanine (MnPc) molecules anchored on the Au(111) surface to efficiently collect and pin hydrogen molecules. A two-dimensional (2D) molecular hydrogen cluster is formed around the MnPc. The hydrogen cluster exhibits bias-dependent topography and spatial-dependent conductance spectra, which are rationalized by the exponentially decreasing threshold energy with distance from the central MnPc to activate the motion of the H2 molecules. This exponential drop reveals an interfacial phase behavior in the 2D cluster. [Figure not available: see fulltext.]

KW - Au(111)

KW - hydrogen

KW - interfacial phase

KW - manganese phthalocyanine

KW - scanning tunneling microscopy

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DO - 10.1007/s12274-013-0373-z

M3 - Article

AN - SCOPUS:84892478686

SN - 1998-0124

VL - 7

SP - 79

EP - 84

JO - Nano Research

JF - Nano Research

IS - 1

ER -

Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules

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Keywords

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