An international research team developed a method to fabricate perovskite thin films using a precursor known as phenethyl ammonium chloride (PEACl) in a simultaneous deposition and passivation step.
Commercial heat packs (containing iron and water, or supersaturated sodium acetate) and cold packs (various ammonium salts) can be used to show exo- and endothermicity. Heat packs that contain iron ...
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