Communication

Modulating the Spatial Electrostatic Potential for 1D Colloidal Nanoparticles Assembly

Jianmei Chen

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Jing Huang

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Andrea Toma

Istituto Italiano di Tecnologia, via Morego 30, Genova, 16163 Italy

Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201 China

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Liubiao Zhong

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Zequn Cui

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Weijing Shao

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Ziyang Li

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Wenkai Liang

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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Francesco De Angelis

Istituto Italiano di Tecnologia, via Morego 30, Genova, 16163 Italy

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Lin Jiang

Corresponding Author

E-mail address: [email protected]

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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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]

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123 China

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[email protected]

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[email protected]

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First published: 25 July 2017

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Citations: 4

Abstract

1D nanoparticle arrangements have gained widespread attention because of their unique collective physical properties and potential applications in functional devices. To push the device integration toward its intrinsic limits, the precise positioning of colloidal nanoparticles into 1D layout is still a challenging task, especially for nanoparticles in the sub‐20 nm range. In this work, a novel strategy based on the synergistic modulation of lateral and bottom electrostatic potential of grooves is applied, thus demonstrating a high‐resolution confinement of 1D colloidal nanoparticle arrays. The mechanism of spatial potential modulation is elucidated in details, through the combination of quantitative theoretical modeling and consistent experimental results. A crystal‐clear guide for the development of novel applications with both fundamental and technological perspectives is therefore provided.

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