Blue light emission from pulsed laser ablated polyethylene

Abstract:

The 1064 nm pulsed laser was used to ablate polyethylene (PE) at different power. Compared with unmodified PE, the ablated polyethylene (PE) gave off obvious blue light under UV lamp irradiation. The morphology and tre structure of ablated and unmodified PE were studied by scanning electron microscope, fluorescence spectroscopy and raman spectroscopy.the results showed that double bonds existed in the ablated PE which resulted in obvious blue emission of ablated PE and the intensity of the laser had great influence on the physical properties and chemical structure of the PE surface.

Key words:TN873.3