Photo-electrochemical properties of quantum rods studied by scanning electrochemical microscopy

Abstract : Scanning electrochemical microscopy (SECM) is used for studying the intrinsic photo-electrochemical properties of CdSe/CdS quantum rods. They are deposited on a transparent and non-conductive glass plate and investigated by SECM in feedback and generator-collector modes using a series of redox mediators. The method allows the interrogation of the quantum rods under illumination without the interference of the substrate, notably that due to the electron photo-ejection from the substrate, a process that is inherent to any polarized electrode material. Beside the methodological demonstration that could easily be extended to the investigations of the photo-redox properties of nanoparticles, studies highlight the strong reductive properties of quantum rods under illumination.
Document type :
Journal articles
Complete list of metadatas

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01470478
Contributor : Laurent Jonchère <>
Submitted on : Friday, February 17, 2017 - 2:41:39 PM
Last modification on : Monday, February 11, 2019 - 11:36:29 AM

Identifiers

Citation

Sebastien Lhenry, Benoît Boichard, Yann R. Leroux, Pascale Even-Hernandez, Valérie Marchi, et al.. Photo-electrochemical properties of quantum rods studied by scanning electrochemical microscopy. Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2017, 19, pp.4627-4635. ⟨10.1039/c6cp07143k⟩. ⟨hal-01470478⟩

Share

Metrics

Record views

159