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Characterization of photoluminescence spectra from poly allyl diglycol carbonate (CR-39) upon excitation with the ultraviolet radiation of various wavelengths
Faculty
Science
Year:
2013
Type of Publication:
Article
Pages:
316-321
Authors:
El Ghazaly, M, Al-Thomali, Talal A
DOI:
10.1080/10420150.2012.745124
Journal:
RADIATION EFFECTS AND DEFECTS IN SOLIDS-INCORPORATING PLASMA SCIENCE AND PLASMA TECHNOLOGY TAYLOR \& FRANCIS LTD
Volume:
168
Research Area:
Nuclear Science \& Technology; Physics
ISSN
ISI:000316215600008
Keywords :
poly allyl diglycol carbonate (CR-39), UVvisible spectrophotometer, photoluminescence (PL), 2, 78, 07, 77, Ka, 61, 82, d
Abstract:
The induced photoluminescence (PL) from the -conjugated polymer poly allyl diglycol carbonate (PADC) (CR-39) upon excitation with the ultraviolet radiation of different wavelengths was investigated. The absorption and attenuation coefficients of PADC (CR-39) were recorded using a UVvisible spectrometer. It was found that the absorption and attenuation coefficients of the PADC (CR-39) exhibit a strong dependence on the wavelength of ultraviolet radiation. The PL spectra were measured with a Flormax-4 spectrofluorometer (Horiba). PADC (CR-39) samples were excited by ultraviolet radiation with wavelengths in the range from 260 to 420nm and the corresponding PL emission bands were recorded. The obtained results show a strong correlation between the PL and the excitation wavelength of ultraviolet radiation. The position of the fluorescence emission band peak was red shifted starting from 300nm, which was increased with the increase in the excitation wavelength. The PL yield and its band peak height were increased with the increase in the excitation wavelength till 290nm, thereafter they decreased exponentially with the increase in the ultraviolet radiation wavelength. These new findings should be considered carefully during the use of the PADC (CR-39) in the scientific applications and in using PADC (CR-39) in eyeglasses.
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