Insulator becomes conductor at the push of a button

phys.org | 9/11/2018 | Staff
jenn1020 (Posted by) Level 3
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Ionic liquids are important in scientific research because they can apply a lot of charge over a surface. Physicists from Leiden University have now found that the charging process of ionic liquids depends purely on opposite charges attracting each other. Chemical reactions are sometimes involved, but not essential.

In studies with electricity, physicists often want to apply as much charge as possible over a surface for research on material properties or to generate a huge electric pulse in one go. Ionic liquids are remarkably suited for this because they apply charge through ions. These charged particles keep a more stable charge than their solid-state equivalent, electrons. Within an ionic liquid, opposite ions accumulate on both sides of a surface, which gets charged as a result. The charging process is so effective that it can make an insulating surface conductive.

Physicist - Jan - Van - Ruitenbeek - Hasan

Physicist Jan van Ruitenbeek, together with Hasan Atesci and others from his group, study the charging process within an ionic liquid by cooling it down to around -100 °C and making sure there is no water or oxygen present. In these conditions, there...
(Excerpt) Read more at: phys.org
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