US 11,990,287 B2
Photovoltaic window color-conversion layers
Kevin Joseph Prince, Golden, CO (US); and Lance Michael Wheeler, Golden, CO (US)
Assigned to Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed by Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed on Aug. 24, 2022, as Appl. No. 17/894,992.
Claims priority of provisional application 63/236,347, filed on Aug. 24, 2021.
Prior Publication US 2023/0061924 A1, Mar. 2, 2023
Int. Cl. H01L 31/00 (2006.01); C09B 11/24 (2006.01); C09B 67/20 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H01G 9/20 (2006.01); H02S 20/26 (2014.01); H10K 30/30 (2023.01); H10K 30/40 (2023.01); H10K 30/87 (2023.01)
CPC H01G 9/209 (2013.01) [C09B 11/24 (2013.01); C09B 67/0063 (2013.01); C09K 11/02 (2013.01); C09K 11/06 (2013.01); H01G 9/2009 (2013.01); H02S 20/26 (2014.12); H10K 30/30 (2023.02); H10K 30/40 (2023.02); H10K 30/87 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1018 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A photovoltaic (PV) device comprising:
a color-tuning layer comprising a dye positioned within a matrix; and
a PV layer comprising a perovskite, wherein:
the color-tuning layer is capable of absorbing light comprising a first wavelength and emitting light comprising a second wavelength,
the first wavelength is between 400 nm and 700 nm,
the second wavelength is greater than the first wavelength,
the PV layer has a disordered state and an ordered state,
the PV layer is not substantially photoactive when in the disordered state,
the PV layer is configured to absorb a portion of the second wavelength when in the ordered state,
the device is at least partially transparent to light in the visible spectrum when the PV layer is in the disordered, and
the device is at least partially opaque to light in the visible spectrum when the PV layer is in the ordered state.