Cargando…

Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent

[Image: see text] In this article, synthesis of white-light-emitting, highly stable carbon dots (CDs) using a colloidal synthesis technique is reported. It has been observed that the use of a non-coordinating solvent plays a vital role in the successful fabrication of highly stable CDs. Dilution-ind...

Descripción completa

Detalles Bibliográficos
Autores principales: Perikala, Manasa, Bhardwaj, Asha
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6921605/
https://www.ncbi.nlm.nih.gov/pubmed/31867516
http://dx.doi.org/10.1021/acsomega.9b02686
_version_ 1783481197814349824
author Perikala, Manasa
Bhardwaj, Asha
author_facet Perikala, Manasa
Bhardwaj, Asha
author_sort Perikala, Manasa
collection PubMed
description [Image: see text] In this article, synthesis of white-light-emitting, highly stable carbon dots (CDs) using a colloidal synthesis technique is reported. It has been observed that the use of a non-coordinating solvent plays a vital role in the successful fabrication of highly stable CDs. Dilution-independent emissive behavior in CDs is achieved. Excitation-energy-dependent emissive behavior is observed in CDs. However, by surface passivating the CD core by using hexadecylamine (HDA), excitation wavelength dependence of emission is successfully minimized. Surface-functionalized CDs (SFCDs) show blue to green light tunable emission with the change in synthesis conditions. HDA also plays an important role in achieving dilution-independent emission in SFCDs. Furthermore, the carbon dots synthesized are highly inert, and their emission spectra are unaffected on exposure to an open atmosphere for as long as 9 days. A new class of highly crystalline carbon dots called “carbon onion rings” is reported.
format Online
Article
Text
id pubmed-6921605
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-69216052019-12-20 Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent Perikala, Manasa Bhardwaj, Asha ACS Omega [Image: see text] In this article, synthesis of white-light-emitting, highly stable carbon dots (CDs) using a colloidal synthesis technique is reported. It has been observed that the use of a non-coordinating solvent plays a vital role in the successful fabrication of highly stable CDs. Dilution-independent emissive behavior in CDs is achieved. Excitation-energy-dependent emissive behavior is observed in CDs. However, by surface passivating the CD core by using hexadecylamine (HDA), excitation wavelength dependence of emission is successfully minimized. Surface-functionalized CDs (SFCDs) show blue to green light tunable emission with the change in synthesis conditions. HDA also plays an important role in achieving dilution-independent emission in SFCDs. Furthermore, the carbon dots synthesized are highly inert, and their emission spectra are unaffected on exposure to an open atmosphere for as long as 9 days. A new class of highly crystalline carbon dots called “carbon onion rings” is reported. American Chemical Society 2019-12-04 /pmc/articles/PMC6921605/ /pubmed/31867516 http://dx.doi.org/10.1021/acsomega.9b02686 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Perikala, Manasa
Bhardwaj, Asha
Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title_full Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title_fullStr Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title_full_unstemmed Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title_short Highly Stable White-Light-Emitting Carbon Dot Synthesis Using a Non-coordinating Solvent
title_sort highly stable white-light-emitting carbon dot synthesis using a non-coordinating solvent
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6921605/
https://www.ncbi.nlm.nih.gov/pubmed/31867516
http://dx.doi.org/10.1021/acsomega.9b02686
work_keys_str_mv AT perikalamanasa highlystablewhitelightemittingcarbondotsynthesisusinganoncoordinatingsolvent
AT bhardwajasha highlystablewhitelightemittingcarbondotsynthesisusinganoncoordinatingsolvent