Photoinduced Electron Transfer in Carbon Dots with Long-Wavelength Photoluminescence

Keenan J. Mintz, Brenda Guerrero, Roger Leblanc

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Carbon dots have often been studied to investigate their unique optical properties such as excitation wavelength-independence emission. Carbon dots have also been shown to undergo electron transfer in different situations. This study endeavors to investigate the properties of carbon dots' photoluminescence and electron transfer. Herein, the preparation and characterization of carbon dots which exhibit long wavelength photoluminescence has been reported. These carbon dots exhibit quenching when exposed to metal ions in proportion to the reduction potential of the metal, which experimental evidence has shown for the first time. This property of metal ion reduction potential-dependent quenching has been studied to show the collisional electron transfer from amine groups in carbon dots to the metal ions. Therefore, the photoluminescence in these carbon dots is directly related to organic functional groups on the surface of the carbon dots.

Original languageEnglish (US)
JournalJournal of Physical Chemistry C
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Photoluminescence
electron transfer
Carbon
photoluminescence
Wavelength
Electrons
carbon
wavelengths
Metal ions
metal ions
Quenching
quenching
Functional groups
Amines
proportion
amines
Optical properties
Metals
optical properties
preparation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Photoinduced Electron Transfer in Carbon Dots with Long-Wavelength Photoluminescence. / Mintz, Keenan J.; Guerrero, Brenda; Leblanc, Roger.

In: Journal of Physical Chemistry C, 01.01.2018.

Research output: Contribution to journalArticle

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