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Journal of Spectroscopy
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2015
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Article
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Tab 2
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Research Article
Tuning the Refractive Index and Optical Band Gap of Silk Fibroin Films by Electron Irradiation
Table 2
Band gap energy and Urbach energy of virgin and electron irradiated silk fibroin films.
Sample
Band gap energy (eV)
Urbach energy (eV)
Virgin
4.18
0.524
50 kGy
4.12
0.452
100 kGy
4.08
0.430
150 kGy
3.94
0.426