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Zinc phosphide
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<p>Zinc phosphide (<a href="/facts/Zinc/80b1qgk3">Zn3</a><a href="/facts/Phosphorus/27xCeIqs">P2</a>) is an <a href="/facts/Inorganic/TfFfzxSz">inorganic</a> <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a>. It is a grey solid, although commercial samples are often dark or even black. It is used as a <a href="/facts/Rodenticide/unEUuByD">rodenticide</a>. Zn3P2 is a <a href="/facts/List_of_semiconductor_materials/RMcsYTWQ">II-V</a> <a href="/facts/Semiconductor/zFf3mGTE">semiconductor</a> with a direct band gap of 1.5 <a href="/facts/Electron_volt/YMT1fqX9">eV</a> and may have applications in <a href="/facts/Solar_cell/3L814UCC">photovoltaic cells</a>. A second compound exists in the zinc-phosphorus system, <a href="/facts/Zinc_diphosphide/SXe67hAx">zinc diphosphide (ZnP2)</a>. </p>