Ultra-Broadband Photoluminescent Carbon Dots Synthesized by Laser-Induced Thermal Shock

Artem D. Sinelnik*, Mikhail V. Rybin, Dmitry S. Gets, Soslan A. Khubezhov, Lev E. Zelenkov, Sergey V. Makarov, Ivan I. Shishkin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Carbon dots (CDs) emerge as a novel type of fluorescent materials with a good photostability, biocompatibility, and high quantum yield. They become a promising alternative to conventional fluorescent materials such as rare-earth phosphors and semiconductor quantum dots owing to their ease of synthesis and fabrication from ready-available compounds. Near-infrared (NIR) CDs are of high demand for in vivo studies owing to little photoinduced damage to surrounding tissues, deep penetration of radiation into tissue, and low autofluorescence. A laser-assisted synthesis approach is demonstrated, which allows NIR-emitting CDs to be obtained. By rapidly heating the precursors (4,4’-bis(diethylamino)benzophenone in sol–gel matrix) with femtosecond pulses, NIR emitting CDs can be obtained with the emission in the ranges of 800–1000 and 1100–1600 nm of the resulting CDs.

Original languageEnglish
Article number2200295
JournalLaser and Photonics Reviews
Issue number1
StatePublished - Jan 2023
Externally publishedYes


  • NIR-emission
  • carbon dots
  • ultra-broadband photoluminescence


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