6533b834fe1ef96bd129e324
RESEARCH PRODUCT
Electrogeneration of Diiodoaurate in Dimethylsulfoxide on Gold Substrate and Localized Patterning
Guillaume HerlemTijani GharbiHélène CatteyAhmed KandoryEtienne HerthReda Yahiaouisubject
Materials scienceMicroscopeutramicroelectrodePhysics::Instrumentation and DetectorsScanning electron microscope020209 energyAnalytical chemistrychemistry.chemical_elementUltramicroelectrode02 engineering and technologyDFT[ CHIM ] Chemical Scienceslaw.invention[SPI.MAT]Engineering Sciences [physics]/MaterialsScanning electrochemical microscopyEtching (microfabrication)law0202 electrical engineering electronic engineering information engineeringElectrochemistry[CHIM]Chemical Sciencessilver[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronicsionic liquid[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]electron-beam lithographyself-assembled monolayersscanning electrochemical microscopyiodine-iodidegold etchingEQCMchemistryElectrodebis(trifluoromethanesulfonyl)imidefilmsfeedback modePlatinumSECMElectron-beam lithographydissolution kineticsdescription
International audience; A localized etching of gold surface by scanning electrochemical microscope technique is presented where a dimethylsulfoxide-based electrolyte charged with iodine is used. The electrogenerated triiodide ion at the platinum ultramicroelectrode tip (feedback mode) acts as an oxidant for gold surface. The effects of electrode diameter and the bias time have been investigated. The approach curve method was used to hold the electrode tip close to the gold surface. A scanning electron microscope is used to observe the etched gold surfaces where disk-shaped dots are generated. The diameter of these holes depends directly on the Pt electrode diameter and the bias time.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-08-07 |