The resistive switching (RS) mechanism of hybrid organic-inorganic perovskites has not been clearly understood until now. A switchable diode-like RS behavior in MAPbBr₃ single crystals using Au (or Pt) symmetric electrodes is reported. Both the high resistance state (HRS) and low resistance state (LRS) are electrode-area dependent and light responsive. We propose an electric-field-driven inner p-n junction accompanied by a trap-controlled space-charge-limited conduction (SCLC) conduction mechanism to explain this switchable diode-like RS behavior in MAPbBr₃ single crystals.

中文翻译：

---

MAPbBr 3单晶中导电的电调制

到目前为止，还不清楚有机-无机钙钛矿杂化的电阻转换（RS）机理。报道了使用Au（或Pt）对称电极在MAPbBr ₃单晶中的可切换二极管状RS行为。高电阻状态（HRS）和低电阻状态（LRS）都取决于电极区域并且对光敏感。我们提出了一个电场驱动的内部pn结，并伴有一个陷阱控制的空间电荷限制传导（SCLC）传导机制，以解释MAPbBr ₃单晶中这种可切换的二极管状RS行为。