Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films

Detalhes bibliográficos
Autor(a) principal: Noveletto, Julia Cristina
Data de Publicação: 2019
Outros Autores: Ferreira-Neto, Elias Paiva [UNESP], Gonçalves, Lidiane Patricia, Ullah, Sajjad [UNESP], Donatti, Dario Antonio [UNESP], Lima Ribeiro, Sidney José [UNESP], Rodrigues-Filho, Ubirajara Pereira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.optmat.2019.04.034
http://hdl.handle.net/11449/189004
Resumo: We report novel Ag+‒doped ormosil-phosphotungstate (PW12O40 3−) hybrid films that exhibit reversible yellow photochromism based on the phosphotungstate-assisted photo-induced formation of silver nanoparticles (AgNPs) and their reversible oxidation back to Ag+ ions upon low temperature heating (60–80 °C). The sol-gel derived, dip-coated, hybrid films containing phosphotungstate anions and Ag+ ions exhibit yellow color upon UV exposure and become colorless upon simple heating. Using an array of complementary analytical techniques, we first present a detailed characterization of the prepared materials and then discuss the coloration/discoloration mechanism involved. The presence of both phosphotungstate and Ag+ ions inside the hybrid matrix is found to be imperative for achieving the photochromic behavior. Owing to the presence of AgNPs and their easily achievable coloration/discoloration, these hybrid films may find application in optical memory systems, band pass filters, non-linear optical devices, UV sensing and antibacterial coatings.
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spelling Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid filmsAg nanoparticlesOptical thin filmPhotochromicPlasmonicPolyoxometalateSol-gelWe report novel Ag+‒doped ormosil-phosphotungstate (PW12O40 3−) hybrid films that exhibit reversible yellow photochromism based on the phosphotungstate-assisted photo-induced formation of silver nanoparticles (AgNPs) and their reversible oxidation back to Ag+ ions upon low temperature heating (60–80 °C). The sol-gel derived, dip-coated, hybrid films containing phosphotungstate anions and Ag+ ions exhibit yellow color upon UV exposure and become colorless upon simple heating. Using an array of complementary analytical techniques, we first present a detailed characterization of the prepared materials and then discuss the coloration/discoloration mechanism involved. The presence of both phosphotungstate and Ag+ ions inside the hybrid matrix is found to be imperative for achieving the photochromic behavior. Owing to the presence of AgNPs and their easily achievable coloration/discoloration, these hybrid films may find application in optical memory systems, band pass filters, non-linear optical devices, UV sensing and antibacterial coatings.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Instituto de Química de São Carlos Universidade de São PauloInstituto de Química Universidade Estadual Paulista (UNESP)Institute of Chemical Sciences University of PeshawarInstituto de Geociências e Ciências Exatas de Rio Claro Departamento de Física. Universidade Estadual Paulista (UNESP)Instituto de Química Universidade Estadual Paulista (UNESP)Instituto de Geociências e Ciências Exatas de Rio Claro Departamento de Física. Universidade Estadual Paulista (UNESP)FAPESP: # 2011/08120FAPESP: 2015/22875-4FAPESP: 2018/01934-0Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)University of PeshawarNoveletto, Julia CristinaFerreira-Neto, Elias Paiva [UNESP]Gonçalves, Lidiane PatriciaUllah, Sajjad [UNESP]Donatti, Dario Antonio [UNESP]Lima Ribeiro, Sidney José [UNESP]Rodrigues-Filho, Ubirajara Pereira2019-10-06T16:26:39Z2019-10-06T16:26:39Z2019-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article233-242http://dx.doi.org/10.1016/j.optmat.2019.04.034Optical Materials, v. 92, p. 233-242, 2019.0925-3467http://hdl.handle.net/11449/18900410.1016/j.optmat.2019.04.0342-s2.0-8506457511743038027802167540253918004801724353810740116655364460474630346540000-0002-9810-75640000-0001-9931-690X0000-0003-3286-9440Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOptical Materialsinfo:eu-repo/semantics/openAccess2021-10-23T10:02:36Zoai:repositorio.unesp.br:11449/189004Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T10:02:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
title Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
spellingShingle Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
Noveletto, Julia Cristina
Ag nanoparticles
Optical thin film
Photochromic
Plasmonic
Polyoxometalate
Sol-gel
title_short Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
title_full Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
title_fullStr Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
title_full_unstemmed Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
title_sort Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
author Noveletto, Julia Cristina
author_facet Noveletto, Julia Cristina
Ferreira-Neto, Elias Paiva [UNESP]
Gonçalves, Lidiane Patricia
Ullah, Sajjad [UNESP]
Donatti, Dario Antonio [UNESP]
Lima Ribeiro, Sidney José [UNESP]
Rodrigues-Filho, Ubirajara Pereira
author_role author
author2 Ferreira-Neto, Elias Paiva [UNESP]
Gonçalves, Lidiane Patricia
Ullah, Sajjad [UNESP]
Donatti, Dario Antonio [UNESP]
Lima Ribeiro, Sidney José [UNESP]
Rodrigues-Filho, Ubirajara Pereira
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
University of Peshawar
dc.contributor.author.fl_str_mv Noveletto, Julia Cristina
Ferreira-Neto, Elias Paiva [UNESP]
Gonçalves, Lidiane Patricia
Ullah, Sajjad [UNESP]
Donatti, Dario Antonio [UNESP]
Lima Ribeiro, Sidney José [UNESP]
Rodrigues-Filho, Ubirajara Pereira
dc.subject.por.fl_str_mv Ag nanoparticles
Optical thin film
Photochromic
Plasmonic
Polyoxometalate
Sol-gel
topic Ag nanoparticles
Optical thin film
Photochromic
Plasmonic
Polyoxometalate
Sol-gel
description We report novel Ag+‒doped ormosil-phosphotungstate (PW12O40 3−) hybrid films that exhibit reversible yellow photochromism based on the phosphotungstate-assisted photo-induced formation of silver nanoparticles (AgNPs) and their reversible oxidation back to Ag+ ions upon low temperature heating (60–80 °C). The sol-gel derived, dip-coated, hybrid films containing phosphotungstate anions and Ag+ ions exhibit yellow color upon UV exposure and become colorless upon simple heating. Using an array of complementary analytical techniques, we first present a detailed characterization of the prepared materials and then discuss the coloration/discoloration mechanism involved. The presence of both phosphotungstate and Ag+ ions inside the hybrid matrix is found to be imperative for achieving the photochromic behavior. Owing to the presence of AgNPs and their easily achievable coloration/discoloration, these hybrid films may find application in optical memory systems, band pass filters, non-linear optical devices, UV sensing and antibacterial coatings.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T16:26:39Z
2019-10-06T16:26:39Z
2019-06-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.optmat.2019.04.034
Optical Materials, v. 92, p. 233-242, 2019.
0925-3467
http://hdl.handle.net/11449/189004
10.1016/j.optmat.2019.04.034
2-s2.0-85064575117
4303802780216754
0253918004801724
3538107401166553
6446047463034654
0000-0002-9810-7564
0000-0001-9931-690X
0000-0003-3286-9440
url http://dx.doi.org/10.1016/j.optmat.2019.04.034
http://hdl.handle.net/11449/189004
identifier_str_mv Optical Materials, v. 92, p. 233-242, 2019.
0925-3467
10.1016/j.optmat.2019.04.034
2-s2.0-85064575117
4303802780216754
0253918004801724
3538107401166553
6446047463034654
0000-0002-9810-7564
0000-0001-9931-690X
0000-0003-3286-9440
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Optical Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 233-242
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799965707015815168

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