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Bandgap‐Like Strong Fluorescence in Functionalized Carbon Nanoparticles
Author(s) -
Wang Xin,
Cao Li,
Yang ShengTao,
Lu Fushen,
Meziani Mohammed J.,
Tian Leilei,
Sun Katherine W.,
Bloodgood Mathew A.,
Sun YaPing
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201000982
Subject(s) - carbon fibers , semiconductor , carbon nanoparticles , quantum dot , fluorescence , nanoscopic scale , nanoparticle , materials science , nanotechnology , band gap , carbon quantum dots , optoelectronics , optics , composite material , physics , composite number
Quantum of solace : Fluorescent carbon dots (surface‐passivated carbon nanoparticles) are developed as an alternative to classical semiconductor quantum dots. Gel column chromatography afforded carbon dots with emission yields close to 60 %. Their optical properties resemble band‐gap transitions found in nanoscale semiconductors, thus suggesting that nanoscale carbon particles acquire essentially semiconductorlike characteristics.