Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films

Abstract Atomic/molecular layer deposition (ALD/MLD) offers unique possibilities in the fabrication of inorganic-organic thin films with novel functionalities. Especially, incorporating nucleobases in the thin-film structures could open new avenues in the development of bio-electronic and photonic d...

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Autores principales:	Ville Pale, Zivile Giedraityte, Xi Chen, Olga Lopez-Acevedo, Ilkka Tittonen, Maarit Karppinen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/29d3c9441cb044d3a4c439f552e2ac1f
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spelling	oai:doaj.org-article:29d3c9441cb044d3a4c439f552e2ac1f2021-12-02T15:05:59ZExcitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films10.1038/s41598-017-07456-62045-2322https://doaj.org/article/29d3c9441cb044d3a4c439f552e2ac1f2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07456-6https://doaj.org/toc/2045-2322Abstract Atomic/molecular layer deposition (ALD/MLD) offers unique possibilities in the fabrication of inorganic-organic thin films with novel functionalities. Especially, incorporating nucleobases in the thin-film structures could open new avenues in the development of bio-electronic and photonic devices. Here we report an intense blue and widely excitation-dependent fluorescence in the visible region for ALD/MLD fabricated sodium-uracil thin films, where the crystalline network is formed from hydrogen-bonded uracil molecules linked via Na atoms. The excitation-dependent fluorescence is caused by the red-edge excitation shift (REES) effect taking place in the red-edge of the absorption spectrum, where the spectral relaxation occurs in continuous manner as demonstrated by the time-resolved measurements.Ville PaleZivile GiedraityteXi ChenOlga Lopez-AcevedoIlkka TittonenMaarit KarppinenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ville Pale Zivile Giedraityte Xi Chen Olga Lopez-Acevedo Ilkka Tittonen Maarit Karppinen Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
description	Abstract Atomic/molecular layer deposition (ALD/MLD) offers unique possibilities in the fabrication of inorganic-organic thin films with novel functionalities. Especially, incorporating nucleobases in the thin-film structures could open new avenues in the development of bio-electronic and photonic devices. Here we report an intense blue and widely excitation-dependent fluorescence in the visible region for ALD/MLD fabricated sodium-uracil thin films, where the crystalline network is formed from hydrogen-bonded uracil molecules linked via Na atoms. The excitation-dependent fluorescence is caused by the red-edge excitation shift (REES) effect taking place in the red-edge of the absorption spectrum, where the spectral relaxation occurs in continuous manner as demonstrated by the time-resolved measurements.
format	article
author	Ville Pale Zivile Giedraityte Xi Chen Olga Lopez-Acevedo Ilkka Tittonen Maarit Karppinen
author_facet	Ville Pale Zivile Giedraityte Xi Chen Olga Lopez-Acevedo Ilkka Tittonen Maarit Karppinen
author_sort	Ville Pale
title	Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
title_short	Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
title_full	Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
title_fullStr	Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
title_full_unstemmed	Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
title_sort	excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/29d3c9441cb044d3a4c439f552e2ac1f
work_keys_str_mv	AT villepale excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms AT zivilegiedraityte excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms AT xichen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms AT olgalopezacevedo excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms AT ilkkatittonen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms AT maaritkarppinen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
_version_	1718388632745672704

Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin films

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