Effects of Excess Cu Addition on Photochromic Properties of AgCl-Urethane Resin Composite Films

<table>Transmittance spectra of CuCl<sub>2</sub>-urethane-resin composite films (without AgCl) at UV-vis irradiation times of 0, 1, 2, 5, and 10 min.</table>

Advances in Materials Science and Engineering

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Figure 3

Figure 3: Effects of Excess Cu Addition on Photochromic Properties of AgCl-Urethane Resin Composite Films 