Engineering and Technology

Single-step fabrication of liquid gallium nanoparticles via capillary interaction for dynamic structural colours

R. R. Sahu, A. S. Ramasamy, et al.

Explore the innovative single-step approach to crafting plasmonic Ga nanostructures embedded in PDMS, leading to stunning tunable colors with remarkable mechanical responsiveness. This groundbreaking research by Renu Raman Sahu, Alwar Samy Ramasamy, Santosh Bhonsle, Mark Vailshery, Archana S, Hemant Kumar, and Tapajyoti Das Gupta showcases a potential leap in reflective displays and sensors.

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Abstract

This paper presents a single-step method for creating plasmonic Ga nanostructures embedded in a polydimethylsiloxane (PDMS) substrate, resulting in tunable colors responsive to mechanical stimuli. The process uses capillary interactions between PDMS oligomers and thermally evaporated Ga. By adjusting the oligomer content in PDMS, a wide range of colors is achieved, showing reversible responses to mechanical stimuli for approximately 80,000 cycles. Prototypes of reflective displays and sensors for various applications are demonstrated.

Publisher

Nature Nanotechnology

Published On

Jun 01, 2024

Authors

Renu Raman Sahu, Alwar Samy Ramasamy, Santosh Bhonsle, Mark Vailshery, Archana S, Hemant Kumar, Tapajyoti Das Gupta

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