Figure 4.

The light transmission rate of the graphene samples. (a) Transmission of the graphene films in the 400- to 800-nm range. (b) Transmission of the graphene films in the 1,000- to 3,000-nm range. The optical transmittance of the graphene films is over 85% in the visible range of 400 to 800 nm.

Ma and Zhang Nanoscale Research Letters 2013 8:440   doi:10.1186/1556-276X-8-440
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