Observation of lasing emission from carbon nanodots in organic solvents

W. F. Zhang; H. Zhu; Siu Fung Yu; H. Y. Yang

doi:10.1002/adma.201104950

Observation of lasing emission from carbon nanodots in organic solvents

W. F. Zhang, H. Zhu, Siu Fung Yu, H. Y. Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

136 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2263-2267
Number of pages	5
Journal	Advanced Materials
Volume	24
Issue number	17
DOIs	https://doi.org/10.1002/adma.201104950
Publication status	Published - 2 May 2012

Keywords

carbon nanodots
cylindrical microcavities
lasing emission
photoluminescence
whispering gallery modes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201104950

Cite this

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KW - carbon nanodots

KW - cylindrical microcavities

KW - lasing emission

KW - photoluminescence

KW - whispering gallery modes

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Observation of lasing emission from carbon nanodots in organic solvents

Abstract

Keywords

ASJC Scopus subject areas

More information

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