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Xin Wang, Li Cao, Sheng-Tao Yang, Fushen Lu, Mohammed J. Meziani, Leilei Tian, Katherine W. Sun, Mathew A. Bloodgood and Ya-Ping Sun Bandgap-Like Strong Fluorescence in Functionalized Carbon Nanoparticles Angewandte Chemie International Edition 49

Version of Record online: 22 JUN 2010 | DOI: 10.1002/anie.201000982

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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.

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