Electric-field-induced charge transfer between gold nanoparticle and capping 2-naphthalenethiol and organic memory cells
Electric-field-induced charge transfer between gold nanoparticle and capping 2-naphthalenethiol and organic memory cells
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DOI：
10.1063/1.1887819
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发表时间：
2005-03
影响因子：
4
通讯作者：
Jianyong Ouyang;C. Chu;Douglas Sieves;Yang Yang-Yang
中科院分区：
文献类型：
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作者：
Jianyong Ouyang;C. Chu;Douglas Sieves;Yang Yang-Yang
在由夹在两个Al电极之间的含有2-萘硫醇封端的Au纳米颗粒的聚苯乙烯膜组成的装置中观察到由高电场诱导的电转变。通过器件的电流从电荷注入控制电流变为空间电荷限制电流。在2 V时，后者的电流比前者高出三个数量级以上。转变后，器件的电流-电压曲线沿两个极性方向沿着不对称。这种转变归因于电场诱导的电荷转移之间的Au纳米粒子和盖帽2-萘乙撑。该器件在高电导状态下具有良好的稳定性，可用作一次写入多次读取的电子存储器。
An electrical transition, induced by a high electric field, was observed in a device consisting of a polystyrene film containing 2-naphthalenethiol-capped Au nanoparticles sandwiched between two Al electrodes. The current through the device changed from a charge-injection-controlled current to a space-charge-limited current. The latter current is higher than the former by more than three orders of magnitude at 2 V. Asymmetrical current-voltage curve was observed along the two polarity directions for the device after the transition. This transition is attributed to an electric-field-induced charge transfer between the Au nanoparticle and the capping 2-naphthalenethiol. The device exhibits good stability in the high conductivity state, so it can be used as a write-once-read-many times electronic memory.