Water-Stable Upconverting Coordination Polymer Nanoparticles for Transparent Films and Anticounterfeiting Patterns with Air-Stable Upconversion
Zhang, Junda (Universitat Autònoma de Barcelona. Departament de Química)
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)
Novio Vázquez, Fernando (Universitat Autònoma de Barcelona. Departament de Química)
Roscini, Claudio (Institut Català de Nanociència i Nanotecnologia)

Date:	2023
Abstract:	Photon upconversion (UC) based on triplet-triplet annihilation is a very promising phenomenon with potential application in several areas, though, due to the intrinsic mechanism, the achievement of diffusion-limited solid materials with air-stable UC is still a challenge. Herein, we report UC coordination polymer nanoparticles (CPNs) combining sensitizer and emitter molecules especially designed with alkyl spacers that promote the amorphous character. Beyond the characteristic constraints of crystalline MOFs, amorphous CPNs facilitate high dye density and flexible ratio tunability. To show the universality of the approach, two types of UC-CPNs are reported, exhibiting highly photostable UC in two different visible spectral regions. Given their nanoscale, narrow size distribution, and good chemical/colloidal stability in water, the CPNs were also successfully printed as anticounterfeiting patterns and used to make highly transparent and photostable films for luminescent solar concentrators, both showing air-stable UC.
Grants:	Agencia Estatal de Investigación PID2021-127983OB-C21 Agencia Estatal de Investigación SEV-2017-0706 European Commission 754558
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Triplet−triplet annihilation ; Upconversion ; Coordination polymer nanoparticles ; Metal−organic framework ; Luminescent solar concentrators
Published in:	ACS applied materials & interfaces, Vol. 15, Issue 6 (February 2023) , p. 8377-8386, ISSN 1944-8252

DOI: 10.1021/acsami.2c16354
PMID: 36722461

10 p, 5.0 MB

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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