Template dissolution interfacial patterning of single colloids for nanoelectrochemistry and nanosensing
File(s)2109.00340v1.pdf (1016.95 KB)
Accepted version
Author(s)
Type
Journal Article
Abstract
Deterministic positioning and assembly of colloidal nanoparticles (NPs) onto substrates is a core requirement and a promising alternative to top-down lithography to create functional nanostructures and nanodevices with intriguing optical, electrical, and catalytic features. Capillary-assisted particle assembly (CAPA) has emerged as an attractive technique to this end, as it allows controlled and selective assembly of a wide variety of NPs onto predefined topographical templates using capillary forces. One critical issue with CAPA, however, lies in its final printing step, where high printing yields are possible only with the use of an adhesive polymer film. To address this problem, we have developed a template dissolution interfacial patterning (TDIP) technique to assemble and print single colloidal AuNP arrays onto various dielectric and conductive substrates in the absence of any adhesion layer, with printing yields higher than 98%. The TDIP approach grants direct access to the interface between the AuNP and the target surface, enabling the use of colloidal AuNPs as building blocks for practical applications. The versatile applicability of TDIP is demonstrated by the creation of direct electrical junctions for electro- and photoelectrochemistry and nanoparticle-on-mirror geometries for single-particle molecular sensing.
Date Issued
2020-12-22
Date Acceptance
2020-12-03
Citation
ACS Nano, 2020, 14 (12), pp.17693-17703
ISSN
1936-0851
Publisher
American Chemical Society
Start Page
17693
End Page
17703
Journal / Book Title
ACS Nano
Volume
14
Issue
12
Copyright Statement
© 2020 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsnano.0c09319
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000603308800126&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Chemistry
Science & Technology - Other Topics
Materials Science
nanoparticles
capillary-assisted particle assembly
localized surface plasmon resonance
nanoelectrodes
charge transfer
SERS
GOLD NANORODS
INDIVIDUAL NANOPARTICLES
GAP
GENERATION
SURFACES
PLACEMENT
ARRAYS
DEVICE
MODES
AU
Publication Status
Published
Date Publish Online
2020-12-03