多晶硅用钡掺杂并且在含有低于约0.5%的不溶于硅的气体的二氧化硅坩埚中熔化。
Polysilicon is doped with barium and melted in a silica crucible containing less than about 0.5 % gasses insoluble in silicon.
钛酸锶钡铁电薄膜材料具有电热效应，同时又不含有铅类有害物质，可用于铁电致冷，比含铅的铁电材料更具有环保意义。
Because BST materials weren't added with Pb and had the electrocaloric effect, the reseatch on BST thin films applied ferroelectric refrigeration was more meaningful to protect the entironment.
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