Gold Cleaning Methods for Electrochemical Detection Applications

Lee MacKenzie Fischer; Maria Tenje; Arto Heiskanen; Noriyuki Masuda; Jaime Castillo; Anders Bentien; Jenny Emnéus; Mogens Havsteen Jakobsen; Anja Boisen

doi:10.1016/j.mee.2008.11.045

Gold Cleaning Methods for Electrochemical Detection Applications

Lee MacKenzie Fischer
, Maria Tenje
, Arto Heiskanen
, Noriyuki Masuda
, Jaime Castillo
, Anders Bentien
, Jenny Emnéus
, Mogens Havsteen Jakobsen
, Anja Boisen

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

This work investigates methods for obtaining reliably clean gold film surfaces. Nine gold cleaning methods are investigated here: UV ozone photoreactor; potassium hydroxide-hydrogen peroxide; potassium hydroxide potential sweep; sulfuric acid hydrogen peroxide; sulfuric acid potential cycling; hydrochloric acid potential cycling; dimethylamine borane reducing agent solutions at 25 and 65 degrees C; and a dilute form of Aqua Regia. Peak-current potential-differences obtained from cyclic voltammetry and charge transfer resistance obtained from electrochemical impedance spectroscopy, as well as X-ray photo-electron spectroscopy are used to characterize surface cleanliness. A low peak-current potential-difference and charge transfer resistance indicates a cleaner surface, as does a higher percentage of elemental gold on the electrode surface. The potassium hydroxide potential sweep method is found to leave the gold surface the cleanest overall.

Original language	English
Journal	Microelectronic Engineering
Volume	86
Issue number	4-6
Pages (from-to)	1282-1285
ISSN	0167-9317
DOIs	https://doi.org/10.1016/j.mee.2008.11.045
Publication status	Published - 2009
Event	34th International Conference on Micro and Nano Engineering - Athens, Greece Duration: 15 Sept 2008 → 18 Sept 2008 Conference number: 34

Conference

Conference	34th International Conference on Micro and Nano Engineering
Number	34
Country/Territory	Greece
City	Athens
Period	15/09/2008 → 18/09/2008

Keywords

Cyclic Voltammetry
Gold Cleaning
Impedance Spectroscopy
Electrochemistry

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@inproceedings{5821acb126334cac967d110003c2e98f,

title = "Gold Cleaning Methods for Electrochemical Detection Applications",

abstract = "This work investigates methods for obtaining reliably clean gold film surfaces. Nine gold cleaning methods are investigated here: UV ozone photoreactor; potassium hydroxide-hydrogen peroxide; potassium hydroxide potential sweep; sulfuric acid hydrogen peroxide; sulfuric acid potential cycling; hydrochloric acid potential cycling; dimethylamine borane reducing agent solutions at 25 and 65 degrees C; and a dilute form of Aqua Regia. Peak-current potential-differences obtained from cyclic voltammetry and charge transfer resistance obtained from electrochemical impedance spectroscopy, as well as X-ray photo-electron spectroscopy are used to characterize surface cleanliness. A low peak-current potential-difference and charge transfer resistance indicates a cleaner surface, as does a higher percentage of elemental gold on the electrode surface. The potassium hydroxide potential sweep method is found to leave the gold surface the cleanest overall.",

keywords = "Cyclic Voltammetry, Gold Cleaning, Impedance Spectroscopy, Electrochemistry",

author = "Fischer, \{Lee MacKenzie\} and Maria Tenje and Arto Heiskanen and Noriyuki Masuda and Jaime Castillo and Anders Bentien and Jenny Emn{\'e}us and Jakobsen, \{Mogens Havsteen\} and Anja Boisen",

year = "2009",

doi = "10.1016/j.mee.2008.11.045",

language = "English",

volume = "86",

pages = "1282--1285",

journal = "Microelectronic Engineering",

issn = "0167-9317",

publisher = "Elsevier",

number = "4-6",

note = "34th International Conference on Micro and Nano Engineering, MNE '08 ; Conference date: 15-09-2008 Through 18-09-2008",

}

TY - GEN

T1 - Gold Cleaning Methods for Electrochemical Detection Applications

AU - Fischer, Lee MacKenzie

AU - Tenje, Maria

AU - Heiskanen, Arto

AU - Masuda, Noriyuki

AU - Castillo, Jaime

AU - Bentien, Anders

AU - Emnéus, Jenny

AU - Jakobsen, Mogens Havsteen

AU - Boisen, Anja

N1 - Conference code: 34

PY - 2009

Y1 - 2009

N2 - This work investigates methods for obtaining reliably clean gold film surfaces. Nine gold cleaning methods are investigated here: UV ozone photoreactor; potassium hydroxide-hydrogen peroxide; potassium hydroxide potential sweep; sulfuric acid hydrogen peroxide; sulfuric acid potential cycling; hydrochloric acid potential cycling; dimethylamine borane reducing agent solutions at 25 and 65 degrees C; and a dilute form of Aqua Regia. Peak-current potential-differences obtained from cyclic voltammetry and charge transfer resistance obtained from electrochemical impedance spectroscopy, as well as X-ray photo-electron spectroscopy are used to characterize surface cleanliness. A low peak-current potential-difference and charge transfer resistance indicates a cleaner surface, as does a higher percentage of elemental gold on the electrode surface. The potassium hydroxide potential sweep method is found to leave the gold surface the cleanest overall.

AB - This work investigates methods for obtaining reliably clean gold film surfaces. Nine gold cleaning methods are investigated here: UV ozone photoreactor; potassium hydroxide-hydrogen peroxide; potassium hydroxide potential sweep; sulfuric acid hydrogen peroxide; sulfuric acid potential cycling; hydrochloric acid potential cycling; dimethylamine borane reducing agent solutions at 25 and 65 degrees C; and a dilute form of Aqua Regia. Peak-current potential-differences obtained from cyclic voltammetry and charge transfer resistance obtained from electrochemical impedance spectroscopy, as well as X-ray photo-electron spectroscopy are used to characterize surface cleanliness. A low peak-current potential-difference and charge transfer resistance indicates a cleaner surface, as does a higher percentage of elemental gold on the electrode surface. The potassium hydroxide potential sweep method is found to leave the gold surface the cleanest overall.

KW - Cyclic Voltammetry

KW - Gold Cleaning

KW - Impedance Spectroscopy

KW - Electrochemistry

U2 - 10.1016/j.mee.2008.11.045

DO - 10.1016/j.mee.2008.11.045

M3 - Conference article

SN - 0167-9317

VL - 86

SP - 1282

EP - 1285

JO - Microelectronic Engineering

JF - Microelectronic Engineering

IS - 4-6

T2 - 34th International Conference on Micro and Nano Engineering

Y2 - 15 September 2008 through 18 September 2008

ER -

Gold Cleaning Methods for Electrochemical Detection Applications

Abstract

Conference

Keywords

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