题目：

Programmable Negative Differential Resistance EffectsBased on Self-Assembled Au@PPy Core–ShellNanoparticle Arrays

作者：

Jianzhong Zheng ^a, Junchang Zhang ^a, Zi Wang ^a, Liubiao Zhong ^a, Yinghui Sun ^a, Zhiqiang Liang ^a,Youyong Li ^a, Lin Jiang,*^a Xiaodong Chen,*^b and Lifeng Chi*^a

单位：

^a Institute of Functional Nano and Soft Materials (FUNSOM) andCollaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University,Suzhou, Jiangsu 215123, China.

^b School of Materials Science and EngineeringNanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.

摘要：

The negative differential resistance (NDR) effect observed in conductingpolymer/Au nanoparticle composite devices is not yet fully clarified dueto the random and disordered incorporation of Au nanoparticles into conductingpolymers. It remains a formidable challenge to achieve the sequentialarrangement of various components in an optimal manner during thefabrication of Au nanoparticle/conducting polymer composite devices. Here, a novel strategy for fabricating Au nanoparticle/conducting polymer compositedevices based on self-assembled Au@PPy core–shell nanoparticlearrays is demonstrated. The interval between the two Au nanoparticles can beprecisely programmed by modulating the thickness of the shell and the sizeof the core. Programmable NDR is achieved by regulating the spacer betweentwo Au nanoparticles. In addition, the Au/conducting polymer compositedevice exhibits a reproducible memory effect with read–write–erase characteristics.The sequentially controllable assembly of Au@PPy core–shell nanoparticlearrays between two microelectrodes will simplify nanodevice fabrication and will provide a profound impact on the development of new approachesfor Au/conducting polymer composite devices.

影响因子：

21.95

分区情况：

一区

链接：

https://onlinelibrary.wiley.com/doi/10.1002/adma.201802731