Related Experiment Video
Updated: Jun 21, 2026

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Temperature-dependent mean inner potential of polystyrene spheres measured using off-axis electron holography
Yan Lu1, Peng-Han Lu1, Fengshan Zheng2
1Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52428 Jülich, Germany.
None:
Off-axis electron holography is used to measure the temperature dependence of the mean inner potential and electron-beam-induced charging effects in polystyrene spheres with diameters of between 230 and 600 nm from room temperature to 5.3 K. Integrating the model independent and line fitting simulation approaches, enabled by the high quality of the recorded holograms, it has been possible to disentangle the contribution the beam induced charge from that of the mean inner potential (MIP), finding that both quantities (at least for the smaller spheres) increase with decreasing temperature. In particular the MIP reaches a value of (6.48 ± 0.24) V at 5.3 K, corresponding to an increase of 16.8% ±4.2%, with respect to the measurements carried at room temperature, giving the value (5.55 ± 0.07) V.
More Related Videos
11:27Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
Published on: December 8, 2016
07:01Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils
Published on: January 25, 2018
Related Concept Videos
Potential Due to a Polarized Object
π Electron Effects on Chemical Shift: Overview
Thermodynamic Potentials
Atomic Nuclei: Nuclear Spin State Population Distribution