Gold cleaning methods for electrochemical detection applications

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift


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 °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.",
author = "Fischer, {Lee M.} and Maria Tenje and Heiskanen, {Arto R.} and Noriyuki Masuda and {Castillo Leon}, Jaime and Anders Bentien and Jenny Emn{\'e}us and Jakobsen, {Mogens H.} and Anja Boisen",
note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Biomedical Engineering (011200011), Analytical Chemistry (S/LTH) (011001004)",
year = "2009",
doi = "10.1016/j.mee.2008.11.045",
language = "English",
volume = "86",
pages = "1282--1285",
journal = "Microelectronic Engineering",
issn = "1873-5568",
publisher = "Elsevier",
number = "4-6",