Laser-induced structural transformations in semiconductor nanoparticles
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abstract
We report laser-induced phase transformations in CdS nanocrystals under radiation of high-power nanosecond laser pulses with wavelength of 532 nm and 355 nm. The observed changes in size distribution of nanocrystals as well as the changes of their crystal structure from orthorhombic to cubic are uncovered by absorption spectroscopy, high-resolution transmission electron microscopy and selected area electron diffraction.