News tagged with negative charge

What causes ionic wind?

The phenomenon of ionic wind has been known about for centuries: by applying a voltage to a pair of electrodes, electrons are stripped off nearby air molecules, and the ionized air collides with neutral air molecules as it ...

dateFeb 07, 2018 in General Physics feature
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The hidden side of sulfur

Synthetic organic chemistry consists of transforming existing molecules into new molecular structures or assemblies. These new molecular systems are then used in a myriad of ways in everyday life - in a wide range of sectors, ...

dateDec 14, 2016 in Materials Science
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New solution for making 2-D nanomaterials

Two-dimensional (2D) nanomaterials have been made by dissolving layered materials in liquids, according to new UCL-led research. The liquids can be used to apply the 2D nanomaterials over large areas and at low costs, enabling ...

dateNov 21, 2016 in Nanomaterials
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New technique opens up advanced solar cells

In a photovoltaic cell, light generates opposite charges in the active layer. The charges must then be separated as quickly as possible to keep them from recombining. Positive charges are driven by a built-in electric field ...

dateSep 02, 2016 in Materials Science
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