Dual waveguide patterned luminescent solar concentrators

•We introduce a dual waveguide patterned luminescent solar concentrator.•The dual patterned waveguide outperforms a standard fully covered waveguide over all angles.•Addition of a second dye to the bottom waveguide further enhances performance.

Re-absorption of dye-emitted light is a primary loss mechanism in luminescent solar concentrator waveguides. Previous work has demonstrated patterning the waveguide surface with dyes will increase transport efficiency at the cost of total light absorption. This work demonstrates a patterned double waveguide system employing patterning offset between the plates which allows complete surface coverage but can generate an edge emission greater than a standard thin-film fully covered luminescent solar concentrator of the same total thickness, and is effective for all incident angles of light.