Schematic illustration (IMAGE)

The University of Hong Kong

Schematic illustration

Caption

Dual charge carriers in ionomer-solid contact electrification.
a) Schematic illustration of charge carriers in ionomers and non-ionic polymer in contact with FEP counter material; electron, anion, and material fragments (cationic polymer, FAA-3), electron and material fragments (non-ionic polymer, nylon 66), and electron, cation, material fragments (anionic polymer, Nafion 211). b),c) Surface charge retention on FEP contacted with anionic (b) and cationic (c) polymers as a function of time after thermionic emission at 200 and 160 °C, respectively. Each sample was exposed to differing relative humidities in contact electrification.

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The University of Hong Kong

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