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Updated: May 29, 2026

Concurrent Quantitative Conductivity and Mechanical Properties Measurements of Organic Photovoltaic Materials using AFM
Published on: January 23, 2013
The theoretical current-voltage dependence of a non-degenerate disordered organic material obtained with conductive
Cristiano F Woellner1, José A Freire, Michele Guide
1Departamento de Física, Universidade Federal do Paraná, 81531-990 Curitiba-PR, Brazil.
Abstract:
We develop a simple continuum model for the current voltage characteristics of a material as measured by the conducting atomic force microscopy, including space charge effects. We address the effect of the point contact on the magnitude of the current and on the transition voltages between the different current regimes by comparing these with the corresponding expressions obtained with planar electrodes.
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