Lead scandium tantalate

Lead scandium tantalate (PST) is a ferroelectric ceramic material with perovskite structure. It has the formula Pb(Sc_xTa_1−x)O₃. The x is usually about 0.5.

Like structurally similar lead zirconate titanate and barium strontium titanate, PST can be used for manufacture of uncooled focal plane array infrared imaging sensors for thermal cameras. Both bulk and thin film structures are used.

It is a mixed oxide of lead, scandium, and tantalum.

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