Nano Archive

Laser synthesis and size tailor of carbon quantum dots

Hu, Shengliang and Liu, Jun and Yang, Jinlong and Wang, Yanzhong and Cao, Shirui (2011) Laser synthesis and size tailor of carbon quantum dots. Journal of Nanoparticle Research, 13 (12). pp. 7247-7252.

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Carbon quantum dots (C-dots) with average sizes of about 3, 8, and 13 nm were synthesized by laser irradiation of graphite flakes in polymer solution. The obtained C-dots display size and excitation wavelength dependent photoluminescence behavior. The size control of C-dots can be realized by tuning laser pulse width. The original reason could be the effects of laser pulse width on the conditions of nucleation and growth of C-dots. Compared with short-pulse-width laser, the long-pulse-width laser would be better fitted to the size and morphology control of nanostructures in the different material systems.

Item Type:Article
ID Code:11399
Deposited By:Prof. Alexey Ivanov
Deposited On:05 Jan 2012 09:29
Last Modified:05 Jan 2012 09:42

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