Rapid, microwave-assisted deposition of anisotropic silver nanostructures on various substrates

Choudhari, KS and Shivashankar, SA and Kulkarni, SD (2024) Rapid, microwave-assisted deposition of anisotropic silver nanostructures on various substrates. In: RSC Advances, 14 (33). pp. 23638-23644.

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Abstract

A facile, rapid, and scalable in situ microwave-assisted solvothermal technique (MAST) has been developed to deposit anisotropic silver nanoparticles (AgNP) on various substrates in a solution medium. SEM-EDS and XRD were used to characterize the morphology and structure of the deposits. Deposition on non-patterned aluminium led to near-spherical AgNP agglomerates all across the surface. Deposition on the glass at optimum solution concentration led to mirror-like coatings comprising spherical �50 nm particles, whereas no coating occurred at lower concentrations. AgNPs decorated the hexagonal pattern formed on a nano-patterned aluminium (NPA) substrate. Among various precursor concentrations used for deposition on NPA, the 10 μM concentration resulted in conformal deposition, with nanoparticles decorating the hexagons in NPA. In contrast, AgNP density was lower in the concave dimples on NPA. Our work demonstrates a quick and easy approach for the AgNPs' deposition, with control over size, and morphology. It can be used for deposition on large substrates, potentially making it suitable for surface-enhanced spectroscopic applications. © 2024 The Royal Society of Chemistry.

Item Type:	Journal Article
Publication:	RSC Advances
Publisher:	Royal Society of Chemistry
Additional Information:	The copyright for this article belongs to the publisher.
Keywords:	Aluminum; Coatings; Deposits; Glass; Morphology; Silver nanoparticles; Substrates, Assisted deposition; Microwave-assisted; Morphology and structures; Optimum solution; SEM-EDS; Silver nanostructures; Solution concentration; Solvothermal techniques; Various substrates; XRD, Anisotropy
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	28 Aug 2024 08:30
Last Modified:	28 Aug 2024 08:30
URI:	http://eprints.iisc.ac.in/id/eprint/86014

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