The substitution of Tb 3+for Pb 2+ induces lattice aberrance, which resulted in lowering the crystallization ability of perovskite and the tetragonality of the powders as well.

• 形成的钙钛矿结构中 ,Tb3+ 取代Pb2 + 进入晶格位置 ,产生阳离子空位 ,诱发晶格畸变 ,使钙钛矿相的析晶能力比相同热处理条件下未掺杂Tb3+ 的PT低。