Journal
SPECTROSCOPY LETTERS
Volume 48, Issue 9, Pages 638-645Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00387010.2014.948210
Keywords
ablation; nanomaterials; pulsed laser
Categories
Funding
- Laser Technology Unit (LTU), Center of Excellence for Advanced Sciences (CEAS) in National Research Center (NRC) of Egypt
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A pulsed laser-assisted in liquid environment method has been developed successfully to synthesize size-tunable (5-12nm) and different shapes (sphere, rod, rope) of nano II-VI semiconductor (cadmium sulfide). This method can be carried out in two ways; the first one is the top-down technique, which has been discussed in publications in the last few decades, and the other one is the bottom-up technique, which appears for the first time in this paper. X-ray diffraction, ultraviolet-visible spectroscopy, and transmission electron microscopy confirm that the nanoparticles are crystalline. The methods lead to the production of nanomaterials, which are important for photonics and biosensing applications. Both synthesized methods can be applied in all materials because of their ability to ablate almost all kinds of materials due to the ultrahigh energy density and control over the growth process by manipulating the process parameters such as intensity, wavelength, and so on.
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