Scanning thermo-ionic microscopy for probing local electrochemistry at the nanoscale

  title={Scanning thermo-ionic microscopy for probing local electrochemistry at the nanoscale},
  author={Ahmadreza Eshghinejad and Ehsan Nasr Esfahani and Peiqi Wang and Shu-hong Xie and C GearyTimothy and Stuart B. Adler and Jiangyu Li},
  journal={Journal of Applied Physics},
Conventional electrochemical characterization techniques based on voltage and current measurements only probe faradaic and capacitive rates in aggregate. In this work we develop a scanning thermo-ionic microscopy (STIM) to probe local electrochemistry at the nanoscale, based on imaging of Vegard strain induced by thermal oscillation. It is demonstrated from both theoretical analysis and experimental validation that the second harmonic response of thermally induced cantilever vibration… Expand

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