Communication

Programmable Negative Differential Resistance Effects Based on Self‐Assembled [email protected] Core–Shell Nanoparticle Arrays

Jianzhong Zheng

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Junchang Zhang

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Zi Wang

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Liubiao Zhong

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Yinghui Sun

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Zhiqiang Liang

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Youyong Li

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

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Lin Jiang

Corresponding Author

E-mail address: [email protected]

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

E‐mail:

[email protected]

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[email protected]

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[email protected]

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Xiaodong Chen

Corresponding Author

E-mail address: [email protected]

School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore

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ljiang[email protected]

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[email protected]

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[email protected]

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Lifeng Chi

Corresponding Author

E-mail address: [email protected]

Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 Jiangsu, P. R. China

E‐mail:

[email protected]

,

[email protected]

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[email protected]

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First published: 10 July 2018

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Citations: 16

Abstract

The negative differential resistance (NDR) effect observed in conducting polymer/Au nanoparticle composite devices is not yet fully clarified due to the random and disordered incorporation of Au nanoparticles into conducting polymers. It remains a formidable challenge to achieve the sequential arrangement of various components in an optimal manner during the fabrication of Au nanoparticle/conducting polymer composite devices. Here, a novel strategy for fabricating Au nanoparticle/conducting polymer composite devices based on self‐assembled [email protected] core–shell nanoparticle arrays is demonstrated. The interval between the two Au nanoparticles can be precisely programmed by modulating the thickness of the shell and the size of the core. Programmable NDR is achieved by regulating the spacer between two Au nanoparticles. In addition, the Au/conducting polymer composite device exhibits a reproducible memory effect with read–write–erase characteristics. The sequentially controllable assembly of [email protected] core–shell nanoparticle arrays between two microelectrodes will simplify nanodevice fabrication and will provide a profound impact on the development of new approaches for Au/conducting polymer composite devices.

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