1.
Increasing greenhouse production by spectral-shifting and unidirectional light-extracting photonics.
Nat Food
; 2(6): 434-441, 2021 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37118233
RESUMO
Improving photosynthesis and light capture increases crop yield and paves a sustainable way to meet the growing global food demand. Here we introduce a spectral-shifting microphotonic thin film as a greenhouse envelope that can be scalably manufactured for augmented photosynthesis. By breaking the intrinsic propagation symmetry of light, the photonic microstructures can extract 89% of the internally generated light and deliver most of that in one direction towards photosynthetic organisms. The microphotonic film augments lettuce production by more than 20% in both indoor facilities with electric lighting and in a greenhouse with natural sunlight, offering the possibility of increasing crop production efficiency in controlled environments.