Figure 8.

Imaginary part ϵi and real part ϵr of the complex dielectric functions of the undoped and TM-doped TiO2 films. For clarity, the ϵi and part ϵr of the films are shifted by 2 and 5, respectively.

Tian et al. Nanoscale Research Letters 2013 8:533   doi:10.1186/1556-276X-8-533
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