Lateral force microscope and linear-scan voltammetry studies on the replacement of adsorbed thiolates on Au with thiols in solution

Yong Kwan Kim; Jae Pil Koo; Jeong Sook Ha

doi:10.1016/j.tsf.2004.11.199

Lateral force microscope and linear-scan voltammetry studies on the replacement of adsorbed thiolates on Au with thiols in solution

Yong Kwan Kim, Jae Pil Koo, Jeong Sook Ha

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

5 Citations (Scopus)

Abstract

Replacement of self-assembled octanethiolates (OT) on Au with carboxyl-terminated 11-mercaptoundecanoic acid (MUA) in solution was investigated. Lateral force microscope (LFM), which can distinguish the surface areas covered with molecules of different functional groups, was combined with the μ-contact printing technique to study the time dependent replacement reaction. The LFM image of the OT and MUA pattern was deteriorated with the replacement. As the replacement proceeded, the reductive desorption peak of OT continuously shifted towards the position of MUA in the linear-scan voltammogram. Within 50 h in MUA solution, more than 60% of OT molecules on Au were replaced by MUA while the reverse process, replacement of MUA with OT, occurred much more slowly. This confirms the higher stability of MUA self-assembled monolayer (SAM) than OT SAM.

Original language	English
Pages (from-to)	277-281
Number of pages	5
Journal	Thin Solid Films
Volume	479
Issue number	1-2
DOIs	https://doi.org/10.1016/j.tsf.2004.11.199
Publication status	Published - 2005 May 23

Bibliographical note

Funding Information:
This work was supported by Korea Research Foundation (KRF-2002-070-C00050) and National R&D Project for Nano Science and Technology (M10213120001-02B1512-00310).

Keywords

Lateral force microscope
Linear-scan voltammetry
Replacement of self-assembled molecules
Stability of SAM
μ-Contact printing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2004.11.199

Cite this

@article{5b91b6139edb4d80817cab000d97e23d,

title = "Lateral force microscope and linear-scan voltammetry studies on the replacement of adsorbed thiolates on Au with thiols in solution",

abstract = "Replacement of self-assembled octanethiolates (OT) on Au with carboxyl-terminated 11-mercaptoundecanoic acid (MUA) in solution was investigated. Lateral force microscope (LFM), which can distinguish the surface areas covered with molecules of different functional groups, was combined with the μ-contact printing technique to study the time dependent replacement reaction. The LFM image of the OT and MUA pattern was deteriorated with the replacement. As the replacement proceeded, the reductive desorption peak of OT continuously shifted towards the position of MUA in the linear-scan voltammogram. Within 50 h in MUA solution, more than 60% of OT molecules on Au were replaced by MUA while the reverse process, replacement of MUA with OT, occurred much more slowly. This confirms the higher stability of MUA self-assembled monolayer (SAM) than OT SAM.",

keywords = "Lateral force microscope, Linear-scan voltammetry, Replacement of self-assembled molecules, Stability of SAM, μ-Contact printing",

author = "Kim, {Yong Kwan} and Koo, {Jae Pil} and Ha, {Jeong Sook}",

note = "Funding Information: This work was supported by Korea Research Foundation (KRF-2002-070-C00050) and National R&D Project for Nano Science and Technology (M10213120001-02B1512-00310).",

year = "2005",

month = may,

day = "23",

doi = "10.1016/j.tsf.2004.11.199",

language = "English",

volume = "479",

pages = "277--281",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Lateral force microscope and linear-scan voltammetry studies on the replacement of adsorbed thiolates on Au with thiols in solution

AU - Kim, Yong Kwan

AU - Koo, Jae Pil

AU - Ha, Jeong Sook

N1 - Funding Information: This work was supported by Korea Research Foundation (KRF-2002-070-C00050) and National R&D Project for Nano Science and Technology (M10213120001-02B1512-00310).

PY - 2005/5/23

Y1 - 2005/5/23

N2 - Replacement of self-assembled octanethiolates (OT) on Au with carboxyl-terminated 11-mercaptoundecanoic acid (MUA) in solution was investigated. Lateral force microscope (LFM), which can distinguish the surface areas covered with molecules of different functional groups, was combined with the μ-contact printing technique to study the time dependent replacement reaction. The LFM image of the OT and MUA pattern was deteriorated with the replacement. As the replacement proceeded, the reductive desorption peak of OT continuously shifted towards the position of MUA in the linear-scan voltammogram. Within 50 h in MUA solution, more than 60% of OT molecules on Au were replaced by MUA while the reverse process, replacement of MUA with OT, occurred much more slowly. This confirms the higher stability of MUA self-assembled monolayer (SAM) than OT SAM.

AB - Replacement of self-assembled octanethiolates (OT) on Au with carboxyl-terminated 11-mercaptoundecanoic acid (MUA) in solution was investigated. Lateral force microscope (LFM), which can distinguish the surface areas covered with molecules of different functional groups, was combined with the μ-contact printing technique to study the time dependent replacement reaction. The LFM image of the OT and MUA pattern was deteriorated with the replacement. As the replacement proceeded, the reductive desorption peak of OT continuously shifted towards the position of MUA in the linear-scan voltammogram. Within 50 h in MUA solution, more than 60% of OT molecules on Au were replaced by MUA while the reverse process, replacement of MUA with OT, occurred much more slowly. This confirms the higher stability of MUA self-assembled monolayer (SAM) than OT SAM.

KW - Lateral force microscope

KW - Linear-scan voltammetry

KW - Replacement of self-assembled molecules

KW - Stability of SAM

KW - μ-Contact printing

UR - http://www.scopus.com/inward/record.url?scp=15344345569&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2004.11.199

DO - 10.1016/j.tsf.2004.11.199

M3 - Article

AN - SCOPUS:15344345569

SN - 0040-6090

VL - 479

SP - 277

EP - 281

JO - Thin Solid Films

JF - Thin Solid Films

IS - 1-2

ER -

Lateral force microscope and linear-scan voltammetry studies on the replacement of adsorbed thiolates on Au with thiols in solution

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this