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arXiv 1204.4657cond-mat.mtrl-sci
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宽禁带透明Ba1-xLaxSnO3晶体中的高载流子迁移率

High carrier mobility in transparent Ba1-xLaxSnO3 crystals with a wide band gap

X. Luo, Y. S. Oh, A. Sirenko, P. Gao, T. A. Tyson, K. Char, S-W. Cheong

摘要:

我们发现钙钛矿结构的(Ba,La)SnO_3即使在带隙较大的情况下也能有很好的载流子迁移率。在室温下,n型载流子浓度为\sim 8-10 \times 10 19 cm-3的Ba0.98La0.02SnO 3晶体的霍尔迁移率为\sim 103 cm 2 V-1 s-1,带隙Δ的精确测量结果为Δ=4.05 eV,明显大于其它透明导电氧化物的带隙Δ.高迁移率和宽带隙表明(Ba,La)SnO 3是透明导体应用和外延全钙钛矿多层器件的有希望的候选者。

英文摘要:

We discovered that perovskite (Ba,La)SnO3 can have excellent carrier mobility even though its band gap is large. The Hall mobility of Ba0.98La0.02SnO3 crystals with the n-type carrier concentration of \sim 8-10\times10 19 cm-3 is found to be \sim 103 cm2 V-1s-1 at room temperature, and the precise measurement of the band gap Δof a BaSnO3 crystal shows Δ=4.05 eV, which is significantly larger than those of other transparent conductive oxides. The high mobility with a wide band gap indicates that (Ba,La)SnO3 is a promising candidate for transparent conductor applications and also epitaxial all-perovskite multilayer devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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