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Table 3

Gaussian fitting parameters of spectra before and after UV irradiation.

S# Pa/Wb Original UV dose (×1023eV cm-2)

(μm-1) 0.28 0.63 1.0

S4 P1 4.28 3.69 3.55 3.62
W1 1.95 1.98 2.41 2.41

P4 5.24 4.95c (5.24)d .... ....
W4 1.04 1.53c (0.90)d .... ....

P5 .... 4.63d 4.62 4.595
W5 .... 0.94d 1.1 1.04

S7 P1 4.09 4.02
W1 2.18 2.38

P4 5.223 ....
W4 1.19 ....

P5 .... 4.607
W5 .... 1.041

S8 P1 4.36 3.81
W1 2.89 2.27

P4 5.252 ....
W4 1.27 ....

P5 .... 4.69
W5 .... 1.15

S21 P1 4.12 3.79
W1 2.47 2.18

P4 5.057 ....
W4 1.14 ....

P5 .... 4.639
W5 .... 1.12

S23 P1 4.25 3.53
W1 2.29 1.93

P4 5.13 ....
W4 1.15 ....

P5 .... 4.608
W5 .... 1.11

Notes. 

(a)

the position of peaks (P1, P4 and P5).

(b)

the width of peaks (W1, W4 and W5).

(c)

If we consider only one peak shifted toward longer wavelength.

(d)

If we consider that there is a combination of two peaks (P4 and P5).

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