鉛(II)テルリド

化学的特性Lead telluride, PbTe, forms white cubic crystals, sp gr 8.16, and has a hardness of 3 on the Mohs’ scale. It is very slightly soluble in water, melts at 917 °C, and is prepared by melting lead and tellurium together. Lead telluride has semiconductive and photoconductive properties.

解説鉛(II)テルリド,無色の立方晶系結晶．岩塩型構造．a ＝ 6.34 Å．融点905 ℃．密度8.16 g cm－3．水に不溶．HCl，HClO4，KOH水溶液などに侵されない．半導体で，バンドギャップ0.27 eV．抵抗率p型：5×10－3 Ω cm，n型：9×10－4 Ω cm．

使用Lead telluride is used in pyrometry, in heat-sensing instruments such as bolometers and infrared spectroscopes, and in thermoelectric elements to convert heat directly to electricity. Lead telluride is also used in catalysts for oxygen reduction in fuel cells, as cathodes in primary batteries with lithium anodes, in electrical contacts for vacuum switches, in lead-ion selective electrodes, in tunable lasers, and in thermistors.

一般的な説明This product has been enhanced for energy efficiency.