Electrochemical Tuning of Luminescent Carbon Nanodots: From Preparation to Luminescence Mechanism

The size of C‐nanodots can be electrochemically tuned by changing the applied potential during their preparation. The higher the applied potential, the smaller the resulting C‐nanodots. Moreover, the surface oxidation degree of the C‐nanodots can also be electrochemically tuned. The red‐shift of emi...

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Veröffentlicht in:	Advanced materials (Weinheim) 2011-12, Vol.23 (48), p.5801-5806
Hauptverfasser:	Bao, Lei, Zhang, Zhi-Ling, Tian, Zhi-Quan, Zhang, Li, Liu, Cui, Lin, Yi, Qi, Baoping, Pang, Dai-Wen
Format:	Artikel
Sprache:	eng
Schlagworte:	carbon Carbon - chemistry electrochemical tuning Electrochemistry - methods Equipment Design Light Luminescence Materials Testing Microscopy, Electron, Scanning - methods Microscopy, Electron, Transmission - methods nanodots nanoparticles Nanotechnology - methods Nanotubes, Carbon - chemistry Particle Size Quantum Dots Spectrophotometry, Ultraviolet - methods Spectroscopy, Fourier Transform Infrared - methods Surface Properties
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Beschreibung
Zusammenfassung:	The size of C‐nanodots can be electrochemically tuned by changing the applied potential during their preparation. The higher the applied potential, the smaller the resulting C‐nanodots. Moreover, the surface oxidation degree of the C‐nanodots can also be electrochemically tuned. The red‐shift of emission independent of the size provides an insight into the luminescence mechanism of C‐nanodots.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201102866