Al3+-directed electrostatic self-assembly and their surface plasmon resonance properties of Au nanocrystals

Yan-Fang Cheng; Xuan-Di Lai; Yuan Yan; Jun-Ying Peng; Xiang Yu; Cui Ye; Cheng-Lin Fu; Jian-Yu Liu; Yong-Xiang Chen; Jian-Qiang Hu

doi:10.1039/C3RA41925H

Al³⁺-directed electrostatic self-assembly and their surface plasmon resonance properties of Au nanocrystals†

Yan-Fang Cheng,‡^a Xuan-Di Lai,‡^a Yuan Yan,^a Jun-Ying Peng,^a Xiang Yu,*^b Cui Ye,^a Cheng-Lin Fu,^a Jian-Yu Liu,^a Yong-Xiang Chen^a and Jian-Qiang Hu*^a

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* Corresponding authors

^a Key Lab of Fuel Cell Technology of Guangdong Province, Department of Applied Chemistry, College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
E-mail: jqhusc@scut.edu.cn
Tel: +86-20-22236670

^b Analytical and Testing Center, Jinan University, Guangzhou, Guangdong, China
E-mail: yuxiang@jnu.edu.cn

Abstract

A straightforward and effective Al³⁺-directed electrostatic self-assembly strategy for linking Au nanoparticles (NPs) into one-dimensional (1D) or 2D nanoarrays has been demonstrated. In the self-assembly, Al³⁺ concentration played an important role in the Au NPs self-assembly, varying which size, shape, and surface plasmon resonance (SPR) properties of the Au nanoassemblies (NAs) could be well tuned.

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Al³⁺-directed electrostatic self-assembly and their surface plasmon resonance properties of Au nanocrystals†

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Al³⁺-directed electrostatic self-assembly and their surface plasmon resonance properties of Au nanocrystals

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