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Scanning tunneling microscopy (STM) Atomic force microscopy (AFM)

A Scanning probe techniques. Spectroelectrochemistry (ch. 16/17). Scanning tunneling microscopy (STM) Atomic force microscopy (AFM) Scanning electrochemical microscopy (SECM) UV & visible spectroscopy Transmission experiments Specular reflectance & ellipsometry

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Scanning tunneling microscopy (STM) Atomic force microscopy (AFM)

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  1. A Scanning probe techniques. Spectroelectrochemistry (ch. 16/17) Scanning tunneling microscopy (STM) Atomic force microscopy (AFM) Scanning electrochemical microscopy (SECM) UV & visible spectroscopy Transmission experiments Specular reflectance & ellipsometry Internal reflection spectroelectrochemistry Second harmonic spectroscopy Vibrational spectroscopy: IR spectroscopy, Raman spectroscopy Electron & ion spectroscopy XPS, AES, LEED, HREELS, mass spectroscopy Magnetic resonance methods: ESR, NMR Quartz crystal microbalance X-ray methods: XAS, XRD

  2. Scanning probe techniques (ch. 16) Microscopy: optical → scanning electron orforce → STM, AFM in situ vs. ex situ techniques Scanning tunneling microsocpy (STM)

  3. Au(111) at 0.7 V vs. NHE in HCl

  4. Electrochemical STM

  5. STM images of HOPG STM images of Pt(111) with I-adlattice in HClO4

  6. STM images of Cu(111): effect of etching

  7. Scanning tunneling spectroscopy (STS)

  8. Atomic force microscopy (AFM)

  9. Cantilever displacement vs. z-deflection for (left) attractive interaction and (right) repulsive interaction

  10. Electrochemical AFM AFM of Cu underpotential deposition (UPD) on Au(111)

  11. Scanning electrochemical microscopy (SECM)

  12. Principles of SECM

  13. SECM appoach curves for steady-state currents

  14. Imaging surface topography & reactivity Ta oxide formation on Ta

  15. Commercialized SECM

  16. SECM applications Electrochemical Cu etching Ag line formation

  17. Spectroelectrochemistry (Ch. 17) UV & visible spectroscopy 1. Transmission experiments

  18. Cell for transmission spectroelectrochemistry

  19. Responses for transmission spectroelectrochemistry

  20. Spectra of cobalt complex at different potentials

  21. Potentiostat Power meter He-Ne laser (633nm) Detector Electrochemical cell or EC devices In-situ transmittance test

  22. 2. Specular reflectance and ellipsometry

  23. Elliptic polarization arising from a phase shift between parallel & perpendicular components

  24. Specular reflection spectroscopy

  25. Electroreflectance spectra of Ag in NaClO4

  26. Reflectance changes caused by halide adsorption on Au

  27. Ellipsometry Ellipsometer

  28. Ellipsometric results for anodization of Al in tartaric acid

  29. Growth of passive film on Fe at 0.8 V vs. SCE

  30. Growth of polyaniline film: experiemental (dotted) vs. fiited resluts (solid)

  31. 3. Internal reflection spectroelectrochemistry

  32. Transient absorbance

  33. Surface plasmon resonance (SPR)

  34. SPR curves for Au and monolayers

  35. 4. Photoacoustic and Photothermal Spectroscopy

  36. 5. Second harmonic spectroscopy Second harmonic generation (SHG)

  37. SHG response

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