Nguyen, V. and Yan, L. and Si, J. (2016) Synthesis of broad photoluminescence carbon nanodots by femtosecond laser ablation in liquid. In: 16th IEEE International Conference on Nanotechnology - IEEE NANO 2016, 22 August 2016 through 25 August 2016.
Synthesis of broad photoluminescence carbon nanodots by femtosecond laser ablation in liquid.pdf
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Abstract
Carbon nanodots (C-dots) with broad emissions when excitation wavelength changes in a large region are suitable for a broad range of applications, including optical down-conversion devices, bioimaging, and biosensors by selecting different excitation wavelengths without changing their structure. Herein, C-dots exhibiting broad photoluminescence from blue to green regions with strong excitation-dependence have been synthesized via femtosecond laser ablation in ethylenediamine solution. Detailed characterization showed that abundant surface functional groups, such as C-N, C-H, and C-O have been created on the surface of C-dots, which can efficiently introduce new emission centers on the surface site and result in the broad emissions. © 2016 IEEE.
Item Type: | Conference or Workshop Item (Paper) |
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Divisions: | Offices > Office of International Cooperation |
Identification Number: | 10.1109/NANO.2016.7751350 |
Uncontrolled Keywords: | Ablation; Laser excitation; Nanoparticles; Nanotechnology; Photoluminescence; Ultrashort pulses; Carbon nanodots; Down conversion; Emission centers; Ethylenediamine solution; Excitation dependence; Excitation wavelength; Femtosecond laser ablation in liquid; Surface functional groups; Laser ablation |
Additional Information: | Conference code: 125071. Language of original document: English. |
URI: | http://eprints.lqdtu.edu.vn/id/eprint/9789 |