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公开(公告)号：US20190067504A1
公开(公告)日：2019-02-28
申请号：US16113844
申请日：2018-08-27
Applicant: California Institute of Technology , The Regents of the Univeristy of California , The Board of Trustees of the University of Illinois
Inventor： David R. Needell , Noah Bronstein , Armand P. Alivisatos , Harry A. Atwater , Ralph Nuzzo , Haley Bauser , Ognjen Ilic , Junwen He , Lu Xu
IPC: H01L31/055 , H01L31/0216 , H01L31/068 , H01L31/0693
Abstract: Luminescent solar concentrators in accordance with various embodiments of the invention can be designed to minimize photon thermalization losses and incomplete light trapping using various components and techniques. Cadmium selenide core, cadmium sulfide shell (CdSe/CdS) quantum dot (“QD”) technology can be implemented in such devices to allow for near-unity QDs and sufficiently large Stokes shifts. Many embodiments of the invention include a luminescent solar concentrator that incorporates CdSe/CdS quantum dot luminophores. In further embodiments, anisotropic luminophore emission can be implemented through metasurface/plasmonic antenna coupling. In several embodiments, red-shifted luminophores are implemented. Additionally, top and bottom spectrally-selective filters, such as but not limited to selectively-reflective metasurface mirrors and polymeric stack filters, can be implemented to enhance the photon collection efficiency. In some embodiments, luminescent solar concentrator component is optically connected in tandem with a planar Si subcell, forming a micro-optical tandem luminescent solar concentrator.
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公开(公告)号：US11227964B2
公开(公告)日：2022-01-18
申请号：US16113844
申请日：2018-08-27
Applicant: California Institute of Technology , The Regents of the University of California , The Board of Trustees of the University of Illinois
Inventor： David R. Needell , Noah Bronstein , Armand P. Alivisatos , Harry A. Atwater , Ralph Nuzzo , Haley Bauser , Ognjen Ilic , Junwen He , Lu Xu , Colton Bukowsky , Sunita Darbe , Zach Nett , Brent Koscher
IPC: H01L31/055 , H01L31/0693 , H01L31/068 , H01L31/0216 , H01L31/048 , H01L31/054 , H01L31/056
Abstract: Luminescent solar concentrators in accordance with various embodiments of the invention can be designed to minimize photon thermalization losses and incomplete light trapping using various components and techniques. Cadmium selenide core, cadmium sulfide shell (CdSe/CdS) quantum dot (“QD”) technology can be implemented in such devices to allow for near-unity QDs and sufficiently large Stokes shifts. Many embodiments of the invention include a luminescent solar concentrator that incorporates CdSe/CdS quantum dot luminophores. In further embodiments, anisotropic luminophore emission can be implemented through metasurface/plasmonic antenna coupling. In several embodiments, red-shifted luminophores are implemented. Additionally, top and bottom spectrally-selective filters, such as but not limited to selectively-reflective metasurface mirrors and polymeric stack filters, can be implemented to enhance the photon collection efficiency. In some embodiments, luminescent solar concentrator component is optically connected in tandem with a planar Si subcell, forming a micro-optical tandem luminescent solar concentrator.
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公开(公告)号：US20190326460A1
公开(公告)日：2019-10-24
申请号：US16390789
申请日：2019-04-22
Applicant: California Institute of Technology , The Regents of the University of California , The Board of Trustees of the University of Illinois
Inventor： David R. Needell , Haley Bauser , Harry A. Atwater , Armand P. Alivisatos , Ralph Nuzzo , Ognjen Ilic , Colton Bukowsky , Brent A. Koscher , Megan Phelan
IPC: H01L31/055 , H01L31/054 , H01L31/0475 , H01L31/0216
Abstract: Luminescent solar concentrators having a grid-based PV design can be implemented in many different ways. In several embodiments, the LSC is implemented using infrared luminophore technology combined with a PV design implementing a grid of PV cells. LSCs can incorporate quantum dots that absorb uniformly across the visible spectrum and photoluminesce down-shifted energy light in the infrared wavelength regime. Some embodiments include PV cells utilizing micro-grid structures that can be implemented for scalable and controllably transparent applications, such as but not limited to power windows targeted for building integrated photovoltaic applications. In a number of embodiments, the LSCs can utilize a unique PV cell form factor and spectral filter coatings to increase the thermal insulation of the window and enhance photocurrent capture by a silicon micro-grid.
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公开(公告)号：US11992813B2
公开(公告)日：2024-05-28
申请号：US17862916
申请日：2022-07-12
Applicant: California Institute of Technology
Inventor： Ye Shi , Julia R. Greer , Harry A. Atwater , Ognjen Ilic
CPC classification number: B01D69/147 , B01D53/261 , B01D61/364 , B01D69/02 , B01D69/1411 , B01D71/381 , C02F1/447 , B01D2311/2626 , B01D2311/2674 , B01D2313/367 , B01D2325/04 , B01D2325/36 , C02F2201/009
Abstract: A membrane for water collection may include a sheet having a top surface and a bottom surface, and a plurality of conical structures disposed on the top surface of the sheet, the conical structures comprising a hydrogel material. Each conical structure of the plurality of conical structures may have a height of 1 mm to 50 mm, wherein height is measured from the top surface of the sheet to an apex of a conical structure. Each conical structure of the plurality of conical structures may have an apex angle of 10 to 60 degrees.
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