Investigation into Red Emission and Its Applications: Solvatochromic N-Doped Red Emissive Carbon Dots with Solvent Polarity Sensing and Solid-State Fluorescent Nanocomposite Thin Films

Justin B. Domena; Ermin Celebic; Braulio C. L. B. Ferreira; Yiqun Zhou; Wei Zhang; Jiuyan Chen; M. Bartoli; A. Tagliaferro; Qiaxian Johnson; Bhanu P. S. Chauhan; Victor Paulino; Jean-Hubert Olivier; Roger M. Leblanc

doi:10.3390/molecules28041755

Molecules (Feb 2023)

Investigation into Red Emission and Its Applications: Solvatochromic N-Doped Red Emissive Carbon Dots with Solvent Polarity Sensing and Solid-State Fluorescent Nanocomposite Thin Films

Justin B. Domena,
Ermin Celebic,
Braulio C. L. B. Ferreira,
Yiqun Zhou,
Wei Zhang,
Jiuyan Chen,
M. Bartoli,
A. Tagliaferro,
Qiaxian Johnson,
Bhanu P. S. Chauhan,
Victor Paulino,
Jean-Hubert Olivier,
Roger M. Leblanc

Affiliations

Justin B. Domena: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Ermin Celebic: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Braulio C. L. B. Ferreira: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Yiqun Zhou: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Wei Zhang: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Jiuyan Chen: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
M. Bartoli: Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
A. Tagliaferro: Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
Qiaxian Johnson: Department of Chemistry, William Paterson University of New Jersey, 300 Pompton Rd, Wayne, NJ 07470, USA
Bhanu P. S. Chauhan: Department of Chemistry, William Paterson University of New Jersey, 300 Pompton Rd, Wayne, NJ 07470, USA
Victor Paulino: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Jean-Hubert Olivier: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
Roger M. Leblanc: Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA

DOI: https://doi.org/10.3390/molecules28041755
Journal volume & issue: Vol. 28, no. 4
p. 1755

Abstract

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In this work, a NIR emitting dye, p-toluenesulfonate (IR-813) was explored as a model precursor to develop red emissive carbon dots (813-CD) with solvatochromic behavior with a red-shift observed with increasing solvent polarity. The 813-CDs produced had emission peaks at 610 and 698 nm, respectively, in water with blue shifts of emission as solvent polarity decreased. Subsequently, 813-CD was synthesized with increasing nitrogen content with polyethyleneimine (PEI) to elucidate the change in band gap energy. With increased nitrogen content, the CDs produced emissions as far as 776 nm. Additionally, a CD nanocomposite polyvinylpyrrolidone (PVP) film was synthesized to assess the phenomenon of solid-state fluorescence. Furthermore, the CDs were found to have electrochemical properties to be used as an additive doping agent for PVP film coatings.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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