Peculiar electric and photoelectric behavior of lead-containing perovskite-type oxides
Peculiar electric and photoelectric behavior of lead-containing perovskite-type oxides
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含铅钙钛矿型氧化物的独特电学和光电行为
DOI：
10.1080/00150198208208286
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发表时间：
1982
期刊：
影响因子：
0.8
通讯作者：
V. Smotrakov
中科院分区：
文献类型：
--
作者：
O. I. Prokopalo;I. Raevskiĭ;M. A. Malitskaya;Y. Popov;A. Bokov;V. Smotrakov
研究了几种二元（PbTiO3、PbZrO3、PbHfO3）和三元（Pb2ScNbO6、Pb2InNbO6）含铅钙钛矿型氧化物的电物理性质和光电导率。所有研究化合物的带隙能都比不含铅的钙钛矿类似物略小。这一事实归因于铅外层电子壳层的特殊结构。由于含铅钙钛矿的高光敏性，观察到电子子系统（特别是非平衡载流子）对铁电和反铁电晶体相的晶体性质有相当大的影响。
Electrophysical properties and photoconductivity of several binary (PbTiO3, PbZrO3, PbHfO3) and ternary (Pb2ScNbO6, Pb2InNbO6) lead-containing perovskite-type oxides were investigated. Band gap energies for all studied compounds were measured to be somewhat smaller than for its perovskite analogs not containing lead. This fact is ascribed to a specific configuration of the outer electronic shell of lead.Owing to high photosensitivity of the lead-containing perovskites, a considerable effect of electronic subsystem (in particular of the non-equilibrium carriers) on crystal properties both in ferroelectric and antiferroelectric crystal phases was observed.