Snapshots into carbon dots formation through a combined spectroscopic approach

Francesco Rigodanza, Max Burian, Francesca Arcudi, Luka Đorđević, Heinz Amenitsch*, Maurizio Prato

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

The design of novel carbon dots with ad hoc properties requires a comprehensive understanding of their formation mechanism, which is a complex task considering the number of variables involved, such as reaction time, structure of precursors or synthetic protocol employed. Herein, we systematically investigated the formation of carbon nanodots by tracking structural, chemical and photophysical features during the hydrothermal synthesis. We demonstrate that the formation of carbon nanodots consists of 4 consecutive steps: (i) aggregation of small organic molecules, (ii) formation of a dense core with an extended shell, (iii) collapse of the shell and (iv) aromatization of the core. In addition, we provide examples of routes towards tuning the core-shell design, synthesizing five novel carbon dots that all consist of an electron-dense core covered by an amine rich ligand shell.

Originalspracheenglisch
Aufsatznummer2640
FachzeitschriftNature Communications
Jahrgang12
DOIs
PublikationsstatusVeröffentlicht - 2021

ASJC Scopus subject areas

  • !!Chemistry(all)
  • !!Biochemistry, Genetics and Molecular Biology(all)
  • !!Physics and Astronomy(all)

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)
  • Experimental

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