Optical properties of carbon nanodots synthesized by laser induced fragmentation of graphite powder suspended in water

Luminescent carbon nanodots (CNDs) have been synthesized by using laser induced fragmentation of graphite powder in deionized water. The transmission electron microscopy (TEM) image shows that the diameters of the CNDs lie in the range of 30–100nm. The synthesized sample has been characterized by UV...

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Veröffentlicht in:	Materials science in semiconductor processing 2014-11, Vol.27, p.150-153
Hauptverfasser:	Pandey, Nitin, Srivastava, Rajneesh K., Kumar Singh, Manish, Singh, Jay
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Biological and medical sciences Biosensors Biotechnology Carbon CNDs Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronics Exact sciences and technology Fragmentation Fundamental and applied biological sciences. Psychology Graphite Lasers Methods. Procedures. Technologies Nanostructure Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Optoelectronic devices Photoluminescence Physics Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Semiconductors TEM Various methods and equipments
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Zusammenfassung:	Luminescent carbon nanodots (CNDs) have been synthesized by using laser induced fragmentation of graphite powder in deionized water. The transmission electron microscopy (TEM) image shows that the diameters of the CNDs lie in the range of 30–100nm. The synthesized sample has been characterized by UV–vis absorption spectroscopy, Raman spectroscopy and Photoluminescence spectroscopy. The synthesized CNDs exhibited visible, tunable and stable luminescence property. These CNDs have potential future applications such as optoelectronic devices and biosensors. The CNDs having bio-compatibility and bio-absorbability hence it may be used in fluorescence label and microscopy of living organisms.
ISSN:	1369-8001 1873-4081
DOI:	10.1016/j.mssp.2014.06.039