Pradhan Basudev, Batabyal Sudip K, Pal Amlan J
Department of Solid State Physics, Indian Association for the Cultivation of Science, Kolkata 700 032, India.
J Phys Chem B. 2006 Apr 27;110(16):8274-7. doi: 10.1021/jp060122z.
We have observed electrical bistability and large conductance switching in functionalized carbon nanotube (CNT)-conjugated polymer composites at room temperature. The concentration of the CNTs in the polymer matrix controlled the degree of bistability. Conduction mechanism applicable in each of the conducting states has been identified. The switching had an associated memory phenomenon and was reversible in nature. In the bistable devices, the active layer retained its high-conducting state until a reverse voltage erased it. We could "write" or "erase" a state and "read" it for many cycles for random-access memory applications.
我们在室温下观察到功能化碳纳米管（CNT）-共轭聚合物复合材料中的电双稳性和大电导开关现象。聚合物基体中CNT的浓度控制着双稳性的程度。已确定了适用于每种导电状态的传导机制。这种开关具有相关的记忆现象，本质上是可逆的。在双稳态器件中，有源层保持其高导电状态，直到反向电压将其擦除。对于随机存取存储器应用，我们可以“写入”或“擦除”一种状态，并在多个循环中“读取”它。
