Journal article

Orientation-Dependent Soft Plasmonics of Gold Nanobipyramid Plasmene Nanosheets

Runfang Fu, Daniel E Gomez, Qianqian Shi, Lim Wei Yap, Quanxia Lyu, Kaixuan Wang, Zijun Yong, Wenlong Cheng

NANO LETTERS | AMER CHEMICAL SOC | Published : 2021

Abstract

In parallel to the burgeoning field of soft electronics, soft plasmonics focuses on the design and fabrication of plasmonic structures supported on elastomers and to understand how their properties respond to mechanical deformations. Here, we report on a partial ligand-stripping strategy to fabricate elastomer-supported gold nanobipyramid (NBP) plasmene nanosheets. Unlike spherelike building blocks, NBP-building blocks display complex orientation-dependent plasmonic responses to external strains. By collecting polarized plasmonic resonance spectra in conjunction with electrostatic eigenmode modeling, we reveal simultaneous changes in interparticle spacing and spatial orientations of NBP buil..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

This work is financially supported by Australian Research Council Discovery Projects DP200100624. The work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). The authors also gratefully acknowledge the use of facilities at the Monash Centre for Electron Microscopy.