描述聚苯胺柔性透明电极的制作方法，利用该电极制作负电阻器件，在大气环境下观察到明显的负电阻特性，并对其产生负电阻的内在机理进行分析。

The paper describes the method of fabricating flexible polyaniline electrode. Negative resistance is observed obviously in the air using the electrode in the devices and its mechanism is discussed.

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在氧化铅薄膜三层结构的电流——电压特性中发现了具有负电阻区的开关现象。

Switching phenomena with an associated negative resistance region have been observed in the current-voltage characteristics of lead oxide film sandwiches.

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