Luminescent solar concentrator with distributed outcoupling structures and microoptical elements

摘要

A luminescent solar concentrator including a light-guiding slab (110) containing a luminescent material that generates light emissions in response to received sunlight, spaced-apart outcoupling structures (130) that provide a distributed outcoupling of the light emissions through predetermined locations on one of the "broadside" (e.g., upper or lower) surfaces of the light-guiding slab (110), and optical elements (140) positioned to redirect the outcoupled light emissions such that the light emissions are concentrated onto a predetermined target (e.g., a PV cell). Each optical element includes a collimating surface portion and optional returner surface.