Emission characteristics of carbon films in comparison with solvatochromic effects of carbon nanoparticles.
Carbon films
Carbon nanoparticles
Extinction coefficient
Fluorescence quantum yield
Solvatochromism
Journal
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
ISSN: 1873-3557
Titre abrégé: Spectrochim Acta A Mol Biomol Spectrosc
Pays: England
ID NLM: 9602533
Informations de publication
Date de publication:
05 Feb 2022
05 Feb 2022
Historique:
received:
20
06
2021
revised:
20
09
2021
accepted:
23
09
2021
pubmed:
4
10
2021
medline:
24
11
2021
entrez:
3
10
2021
Statut:
ppublish
Résumé
Carbon nanoparticles (CNPs) are getting wide attention due to their fluorescence and low level of toxicity compared to other semiconducting photoluminescent materials. CNPs show strong 'solvatochromism', and the emission mechanism is still under discussion. Florescent carbon in the form of films would tremendously increase its potential for applications. In this work, we report for the first time the fluorescent emission characteristics of carbon films formed by aggregation of CNPs. Films of carbon were grown on glass substrates by using a novelCold Vapour Deposition System. We have performed a detailed comparative study of the emission spectra of film and CNPs (prepared using the microwave synthesis method) in various solvents. A qualitative model based on solvatochromism of CNPs is used to understand the emission pathways in the film.
Identifiants
pubmed: 34601368
pii: S1386-1425(21)01019-2
doi: 10.1016/j.saa.2021.120442
pii:
doi:
Substances chimiques
Solvents
0
Carbon
7440-44-0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
120442Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.