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. 2021 Apr 4;13(7):1158. doi: 10.3390/polym13071158

Table 1.

Some optical parameters for PMMA-PS and PMMA-PS incorporation with CeO2 NPs.

Parameter P-P P-P/1% CeO2 NPs P-P/3% CeO2 NPs P-P/5% CeO2 NPs P-P/7% CeO2 NPs
Dispersion energy Ed (eV) 6.893 14.484 12.268 7.832 9.288
Effective single oscillator E0 (eV) 4.063 6.333 5.433 4.065 4.542
Zero-frequency refractive index n0 1.642 1.812 1.804 1.710 1.744
Zero-frequency dielectric constant ε0 2.696 3.286 3.257 2.926 3.044
Optical oscillator strength f (eV)2 28.011 91.743 66.666 31.847 42.194
Optical moments M−1 1.696 2.286 2.257 1.926 2.044
Optical moments M−3 (eV−2) 0.102 0.056 0.076 0.116 0.099
Oscillator length strength S0 × 10−5 1.804 5.728 4.139 2.119 2.523
Average oscillator wavelength λ0 306.200 199.389 232.683 302.325 282.096
Urbach energy EU (meV) 182.495 186.216 187.360 194.476 207.675