Crossref journal-article
AIP Publishing
Applied Physics Letters (317)
Abstract

We demonstrate an alternative to Kelvin Probe Force Microscopy for imaging surface potential. The open-loop, single-pass technique applies a low-frequency AC voltage to the atomic force microscopy tip while driving the cantilever near its resonance frequency. Frequency mixing due to the nonlinear capacitance gives intermodulation products of the two drive frequencies near the cantilever resonance, where they are measured with high signal to noise ratio. Analysis of this intermodulation response allows for quantitative reconstruction of the contact potential difference. We derive the theory of the method, validate it with numerical simulation and a control experiment, and we demonstrate its utility for fast imaging of the surface photo-voltage on an organic photo-voltaic material.

Bibliography

Borgani, R., Forchheimer, D., Bergqvist, J., Thorén, P.-A., Inganäs, O., & Haviland, D. B. (2014). Intermodulation electrostatic force microscopy for imaging surface photo-voltage. Applied Physics Letters, 105(14).

Authors 6
  1. Riccardo Borgani (first)
  2. Daniel Forchheimer (additional)
  3. Jonas Bergqvist (additional)
  4. Per-Anders Thorén (additional)
  5. Olle Inganäs (additional)
  6. David B. Haviland (additional)
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Dates
Type When
Created 10 years, 10 months ago (Oct. 10, 2014, 8:30 p.m.)
Deposited 2 years, 1 month ago (June 30, 2023, 4:04 p.m.)
Indexed 4 weeks, 2 days ago (July 30, 2025, 7:03 a.m.)
Issued 10 years, 10 months ago (Oct. 6, 2014)
Published 10 years, 10 months ago (Oct. 6, 2014)
Published Online 10 years, 10 months ago (Oct. 10, 2014)
Published Print 10 years, 10 months ago (Oct. 6, 2014)
Funders 1
  1. Knut och Alice Wallenbergs Stiftelse (Knut and Alice Wallenberg Foundation) 10.13039/501100004063 Knut och Alice Wallenbergs Stiftelse

    Region: Europe

    pri (Trusts, charities, foundations (both public and private))

    Labels1
    1. Knut and Alice Wallenberg Foundation

@article{Borgani_2014, title={Intermodulation electrostatic force microscopy for imaging surface photo-voltage}, volume={105}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4897966}, DOI={10.1063/1.4897966}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Borgani, Riccardo and Forchheimer, Daniel and Bergqvist, Jonas and Thorén, Per-Anders and Inganäs, Olle and Haviland, David B.}, year={2014}, month=oct }