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首页> 外文期刊>Solid state ionics >Effects of rock-salt layer on electronic and oxide ionic mixed conductivity in strontium titanate, SrO(SrTiO3)(n) (n=1, 2, infinity)
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Effects of rock-salt layer on electronic and oxide ionic mixed conductivity in strontium titanate, SrO(SrTiO3)(n) (n=1, 2, infinity)

机译：盐岩层对钛酸锶SrO（SrTiO3）（n）（n = 1，2，infinity）中电子和氧化物离子混合电导率的影响

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Electronic conductivity and oxygen permeation properties of analogous compounds of SrO(SrTiO3)(n) (n = 1,2) and SrTiO3 were investigated. Electronic conductivity and oxide ion conductivity decrease with increasing n, and SrTiO3 shows much higher conductivity. The effects of Co doping on oxide ion conductivity and electronic conductivity were also examined and it is observed that it is effective for increasing electrical conductivity and the oxygen permeation rate. Hall effect measurements suggests that the low electron-hole conductivity in Co-doped SrO(SrTiO3)(n) (n = 1, 2) can be assigned to a low mobility, which may result from the low electron and atomic density in the Sr-O rock-salt layer. Quantum mechanical calculations of the electron density also indicate low electron density in the rock-salt layer. This study reveals that the rock-salt layer consisting of Sr-O disturbs electron transfer in SrTiOx oxide and that the perovskite layer has much higher electronic and oxide ionic conductivity.
机译：研究了SrO（SrTiO3）（n）（n = 1,2）和SrTiO3的类似化合物的电导率和氧渗透性能。电子电导率和氧化物离子电导率随n的增加而降低，而SrTiO3则显示出更高的电导率。还研究了Co掺杂对氧化物离子电导率和电子电导率的影响，并且观察到它对于提高电导率和氧渗透率是有效的。霍尔效应测量表明，Co掺杂SrO（SrTiO3）（n）（n = 1，2）中的低电子空穴电导率可归因于低迁移率，这可能是由于Sr中低电子和原子密度引起的-O岩盐层。电子密度的量子力学计算也表明岩盐层中的电子密度低。这项研究表明，由Sr-O组成的岩盐层会干扰SrTiOx氧化物中的电子转移，钙钛矿层具有更高的电子和氧化物离子电导率。

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