Probing electrochemical functionality on the nanoscale via current detection approaches

  • Timothy Farrow

Student thesis: Doctoral ThesisDoctor of Philosophy


Determination of links between local chemistry and the properties exhibited by electrochemically active solid materials is essential for the development of practical devices, especially those whose chemistry, and hence properties, can be modified either post-fabrication or in operation. This thesis considers probing of local functionalities and the electrochemistry governing such properties through highly localised current detection methods.

Investigation covers characterisation of both material properties and chemical structure together with modification of these properties through electrochemical means. Three different material systems are investigated; a lithium-ion conducting glass-ceramic, used in electrochemical cells as an electrolyte or stabilising interface; thin film cerium oxide (CeO2), a material that has several important applications relying on its electrochemical activity including catalysis and solid fuel cell components; and proton-exchanged congruent lithium niobate, which has applications in non-linear optics and wave-guiding technologies.
Date of AwardJul 2020
Original languageEnglish
Awarding Institution
  • Queen's University Belfast
SupervisorMarty Gregg (Supervisor) & Amit Kumar (Supervisor)

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