一种可擦写可读出的有机电双稳器件

A Writable,Erasable and Readable Organic Electrical Bistable Device

本文报道一种可连续可逆转换的有机电双稳薄膜器件,Al/TPR-1/Al/TPR-1/Al,其中TPR-1为有机分子材料,利用真空蒸发-紫外原位聚合的方法制作成膜.在器件中,两层交联的有机物中间夹一层很薄的铝膜.该器件在较低电压(＜3V)作用时呈现高阻状态,阻值大于108Ω;而在较高电压(约5V)作用时,则为低阻态,阻值约为105Ω.两种状态的电阻值比为103～105.高低阻态均可通过一个较小的电压(1V)读出,并且低阻态可以用反向电压'擦除',回到高阻.

We report an electrical bistable device, Al/TPR-1/Al/TPR-1/A1, where TPR-1 is an organic material, which can be fabricated by vacuum evaporation and further cross linked in situ under UV radiation, in the device, a thin metal layer is embedded within the cross-linked organic films as the active medium.The device exhibits a high-resistance state （10^8Ω） under a lower voltage （ 〈 3V） ,whereas it retains in the low-resistance state （10^5 Ω） upon a higher voltage （e. g. 5V） .The resistance ratio of the two states is about 10^3 ～ 10^5. Furthermore, both the high and low-resistanee can be read by a lower bias （1V）. And the low-resistance state can be changed into high-resistance by a negative voltage.