Acetic acid derived carbon dots as efficient pH and bio-molecule sensor

Ansi, V.A.; Ritu, G; Panakkal, Thasleena; Anappara, Aji A.; Renuka, N.K.

doi:10.1080/03067319.2019.1669581

Cited by 7 publications

(1 citation statement)

References 17 publications

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“…Different carbon-based materials are used in solar cells, supercapacitors, light-emitting diodes, sensors, food safety, ion detection, pharmacology, and hydrophobic coatings [1][2][3][4][5][6][7][8][9][10][11]. Fluorescent carbon dots (CDs) represent a new class of carbon nano-size materials, which are of great interest as potential competitors to traditional semiconductor quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence enhancement of carbon dots by Ag nanoparticles in thin-film hybrid structures

Shmagina

Konshina

Shcherbinin

et al. 2020

Surface Engineering

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The plasmon enhancement of carbon dots (CDs) photoluminescence (PL) in thin-film structures with metal nanoparticles is of interest in their practical applications in sensors and light-emitters. This paper investigates CDs in the thin-film structures with nanogranulated silver films with different thickness. CDs in an aqueous solution were precipitated by spin-coating over the surface of annealed Ag films coated previously by a polymer layer. The IR, optical density and PL spectra of free-CDs and in thin-film structures with Ag films were studied. The PL intensity enhancement of CDs was demonstrated in the thin-film structures with Ag films due to absorption cross-section enhancement and the action of the Purcell effect. The improvement of thin-film structures producing technology will contribute to PL enhancement of CDs and the development of new thin-film sensors, light-emitters and other devices on their base.

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