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

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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Main Authors: Ville Pale, Zivile Giedraityte, Xi Chen, Olga Lopez-Acevedo, Ilkka Tittonen, Maarit Karppinen
Format: Article
Language:English
Published: Nature Publishing Group 2017-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-07456-6
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spelling doaj-29d3c9441cb044d3a4c439f552e2ac1f2020-12-08T01:39:58ZengNature Publishing GroupScientific Reports2045-23222017-08-01711710.1038/s41598-017-07456-6Excitation-dependent fluorescence from atomic/molecular layer deposited sodium-uracil thin filmsVille Pale0Zivile Giedraityte1Xi Chen2Olga Lopez-Acevedo3Ilkka Tittonen4Maarit Karppinen5Department of Electronics and Nanoengineering, Aalto UniversityDepartment of Chemistry and Materials Science, Aalto UniversityCOMP Centre of Excellence in Computational Nanoscience, Department of Applied Physics, Aalto UniversityCOMP Centre of Excellence in Computational Nanoscience, Department of Applied Physics, Aalto UniversityDepartment of Electronics and Nanoengineering, Aalto UniversityDepartment of Chemistry and Materials Science, Aalto UniversityAbstract 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.https://doi.org/10.1038/s41598-017-07456-6
collection DOAJ
language English
format Article
sources DOAJ
author Ville Pale
Zivile Giedraityte
Xi Chen
Olga Lopez-Acevedo
Ilkka Tittonen
Maarit Karppinen
spellingShingle 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
Scientific Reports
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 Publishing Group
series Scientific Reports
issn 2045-2322
publishDate 2017-08-01
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.
url https://doi.org/10.1038/s41598-017-07456-6
work_keys_str_mv AT villepale excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
AT zivilegiedraityte excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
AT xichen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
AT olgalopezacevedo excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
AT ilkkatittonen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
AT maaritkarppinen excitationdependentfluorescencefromatomicmolecularlayerdepositedsodiumuracilthinfilms
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