文章基本信息

标题：Mechanical writing of n-type conductive layers on the SrTiO₃ surface in nanoscale
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作者：Yuhang Wang ; Kehan Zhao ; Xiaolan Shi 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
DOI：10.1038/srep10841
出版社：Springer Nature
摘要：The fabrication and control of the conductive surface and interface on insulating SrTiO₃ bulk provide a pathway for oxide electronics. The controllable manipulation of local doping concentration in semiconductors is an important step for nano-electronics. Here we show that conductive patterns can be written on bare SrTiO₃ surface by controllable doping in nanoscale using the mechanical interactions of atomic force microscopy tip without applying external electric field. The conductivity of the layer is n-type, oxygen sensitive, and can be effectively tuned by the gate voltage. Hence, our findings have potential applications in oxide nano-circuits and oxygen sensors.