MTL Annual Research Report 2011 » Figure 1

Figure 1

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$Figure 1: (a) A schematic representation of a luminescent solar concentrator. The trapping efficiency is defined as the fraction of photons emitted from the edge versus photons emitted from the face and edge combined. (b) Illustration of the compounding effect of self-absorption on the trapping efficiency. The green molecule is the first in the system to absorb light, but the three surrounding red dye molecules can absorb photonsthat are re-emitted. The process continues throughout the waveguide, resulting in further loss from the face.$