Observation of lasing emission from carbon nanodots in organic solvents.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22454321.
- Also identified by DOI 10.1002/adma.201104950.
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Abstract
Lasing is observed from carbon nanodots (C-dots) dispersed into a layer of poly(ethylene glycol) coated on the surface of optical fibers under 266 nm optical excitation. This is due to the enhancement of photoluminescence intensity via the esterification of carboxylic groups of the C-dots, and the formation of high-Q cylindrical microcavities to support second-type whispering gallery modes.
Medical subject headings
- Carbon
- Lasers
- Nanoparticles
- Solvents