Nanostructure Tuning of Gold Nanoparticles Films via Click Sintering
Urban, Massimo (Institut Català de Nanociència i Nanotecnologia)
Rosati, Giulio (Institut Català de Nanociència i Nanotecnologia)
Maroli, Gabriel (Institut Català de Nanociència i Nanotecnologia)
Della Pelle, Flavio (Institut Català de Nanociència i Nanotecnologia)
Bonini, A (Institut Català de Nanociència i Nanotecnologia)
Sajti, Laszlo (RHP Technology GmbH)
Fedel, Mariangela (RHP Technology GmbH)
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Date:	2023
Abstract:	Colloidal metal nanoparticles dispersions are commonly used to create functional printed electronic devices and they typically require time-, energy- and equipment-consuming post-treatments to improve their electrical and mechanical properties. Traditional methods, e. g. thermal, UV/IR, and microwave treatments, limit the substrate options and may require expensive equipment, not available in all the laboratories. Moreover, these processes also cause the collapse of the film (nano)pores and interstices, limiting or impeding its nanostructuration. Finding a simple approach to obtain complex nanostructured materials with minimal post-treatments remains a challenge. In this study, a new sintering method for gold nanoparticle inks that called as "click sintering" has been reported. The method uses a catalytic reaction to enhance and tune the nanostructuration of the film while sintering the metallic nanoparticles, without requiring any cumbersome post-treatment. This results in a conductive and electroactive nanoporous thin film, whose properties can be tuned by the conditions of the reaction, i. e. , concentration of the reagent and time. Therefore, this study presents a novel and innovative one-step approach to simultaneously sinter gold nanoparticles films and create functional nanostructures, directly and easily, introducing a new concept of real-time treatment with possible applications in the fields of flexible electronics, biosensing, energy, and catalysis.
Grants:	Ministerio de Economía y Competitividad CEX2021-001214-S European Commission 101008701 Ministerio de Ciencia e Innovación PID2021-124795NB-I00
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Small, (November 2023) , art. 2306167, ISSN 1613-6829

DOI: 10.1002/smll.202306167

13 p, 3.1 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles